UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

AMENDMENT NO. 1 TO

FORM 10-Q

(Mark One)

For the quarterly period ended May 31, 2011November 30, 2012

OR

Commission File No. 1-11288

ACTUANT CORPORATION

(Exact name of registrant as specified in its charter)

N86 W12500 WESTBROOK CROSSING

MENOMONEE FALLS, WISCONSIN 53051

Mailing address: P. O. Box 3241, Milwaukee, Wisconsin 53201

(Address of principal executive offices)

(262) 293-1500

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definition of “accelerated filer,” “large accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act.):    Yes  ¨    No  x

The number of shares outstanding of the registrant’s Class A Common Stock as of June 30, 2011December 31, 2012 was 68,626,884.72,941,967.

EXPLANATORY NOTETABLE OF CONTENTS

FORWARD LOOKING STATEMENTS AND CAUTIONARY FACTORS

This quarterly report on Form 10-Q contains certain statements that constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties. Such forward-looking statements include statements regarding expected financial results and other planned events, including, but not limited to, anticipated liquidity, and capital expenditures. Words such as “may,” “should,” “could,” “anticipate,” “believe,” “estimate,” “expect,” “plan,” “project” and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions that are difficult to predict. Therefore, actual future events or results may differ materially from these statements. We disclaim any obligation to publicly update or revise any forward-looking statements as a result of new information, future events or any other reason.

The following is a list of factors, among others, that could cause actual results to differ materially from the forward-looking statements:

Our Form 10-K for the fiscal year ended August 31, 2012 contains an expanded description of these and other risks that may affect our business, financial position and results of operations under the section entitled “Risk Factors.”

When used herein, the terms “Actuant,” “we,” “us,” “our” and the “Company” refer to Actuant Corporation and its subsidiaries.

Actuant Corporation provides free-of-charge access to its Annual Report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments thereto, through its website, www.actuant.com, as soon as reasonably practical after such reports are electronically filed with the Securities and Exchange Commission.

PART I—FINANCIAL INFORMATION

Item 1—Financial Statements

ACTUANT CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS

(In thousands, except per share amounts)

(Unaudited)

See accompanying Notes to Condensed Consolidated Financial Statements

ACTUANT CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In thousands)

(unaudited)

See accompanying Notes to Condensed Consolidated Financial Statements

ACTUANT CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share amounts)

(unaudited)

See accompanying Notes to Condensed Consolidated Financial Statements

ACTUANT CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

See accompanying Notes to Condensed Consolidated Financial Statements

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Note 1. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Actuant Corporation (“Actuant,” or the “Company”) have been prepared in accordance with generally accepted accounting principles for interim financial reporting and with the instructions of Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. The condensed consolidated balance sheet data as of August 31, 2012 was derived from the Company’s audited financial statements, but does not include all disclosures required by generally accepted accounting principles. For additional information, including the Company’s significant accounting policies, refer to the consolidated financial statements and related footnotes in the Company’s fiscal 2012 Annual Report on Form 10-K.

In the opinion of management, all adjustments considered necessary for a fair statement of financial results have been made. Such adjustments consist of only those of a normal recurring nature. Operating results for the three months ended November 30, 2012 are not necessarily indicative of the results that may be expected for the entire fiscal year ending August 31, 2013.

Note 2. Acquisitions

The Company completed three business acquisitions during fiscal 2012. All of the acquisitions resulted in the recognition of goodwill in the Company’s consolidated financial statements because the purchase prices reflect the future earnings and cash flow potential of these companies, as well as the complementary strategic fit and resulting synergies these businesses should bring to existing operations. The Company incurred acquisition transaction costs of $0.1 million and $0.3 million for the three months ended November 30, 2012 and 2011, respectively, related to various business acquisition activities.

The Company makes an initial allocation of the purchase price, at the date of acquisition, based upon its understanding of the fair value of the acquired assets and assumed liabilities. The Company obtains this information during due diligence and through other sources. If additional information is obtained about these assets and liabilities within the measurement period (not to exceed one year from the date of acquisition), including through asset appraisals and learning more about the newly acquired business, the Company will refine its estimates of fair value.

During fiscal 2012, the Company completed two Maxima Technologies tuck-in acquisitions that further expand the geographic presence, product offerings and technologies of the Engineered Solutions segment. On July 20, 2012 the Company completed the acquisition of the stock of CrossControl AB (“CrossControl”) for $40.6 million of cash, plus potential contingent consideration. CrossControl, headquartered in Sweden, provides advanced electronic solutions for user-machine interaction, vehicle control and mobile connectivity in critical environments. On March 28, 2012 the Company acquired the stock of Turotest Medidores Ltda (“Turotest”) for $8.1 million of cash and $5.3 million of deferred purchase price. Turotest, headquartered in Brazil, designs and manufactures instrument panels and gauges serving the Brazilian agriculture and industrial markets.

In addition, on February 10, 2012 the Company completed the acquisition of the stock of Jeyco Pty Ltd (“Jeyco”) for $20.7 million of cash. This Cortland (Energy segment) tuck-in acquisition, designs and provides specialized mooring, rigging and towing systems and services to the offshore oil & gas industry in Australia and other international markets. Additionally, Jeyco’s products are used in a variety of applications for other markets including cyclone mooring and marine, defense and mining tow systems.

The purchase price allocation for fiscal 2012 acquisitions resulted in the recognition of $40.4 million of goodwill (which is not deductible for tax purposes) and $32.8 million of intangible assets, including $24.2 million of customer relationships, $5.7 million of tradenames, $2.2 million of technologies and $0.7 million of non-compete agreements.

The following unaudited pro forma results of operations of the Company for the three months ended November 30, 2012 and 2011, give effect to these acquisitions as though the transactions and related financing activities had occurred on September 1, 2011 (in thousands, except per share amounts):

Note 3. Restructuring

The Company continuously reviews its cost structure to be responsive to changes in end market demand, identify opportunities for cost synergies from recent acquisitions and in light of changes in the worldwide economy. As a result of increased uncertainty and reduced demand, the Company has implemented various restructuring initiatives including workforce reductions, plant consolidations to reduce manufacturing overhead, the continued movement of production and product sourcing to low cost countries and the centralization of certain selling and administrative functions. Restructuring costs were $0.7 million and $0.5 million for the three months ended November 30, 2012 and 2011, respectively. The restructuring reserve at November 30, 2012 and August 31, 2012 was $2.3 million and $2.9 million, respectively. The remaining restructuring related severance will be paid during the next twelve months, while facility consolidation costs (primarily reserves for future lease payments for vacated facilities) will be paid over the underlying lease terms.

Note 4. Goodwill and Other Intangible Assets

The changes in the carrying value of goodwill for the three months ended November 30, 2012 are as follows (in thousands):

The gross carrying value and accumulated amortization of the Company’s other intangible assets are as follows (in thousands):

Amortization expense recorded on the intangible assets listed above was $7.9 million and $7.2 million for the three months ended November 30, 2012 and 2011, respectively. The Company estimates that amortization expense will be approximately $22.0 million for the remainder of fiscal 2013. Amortization expense for future years is estimated to be as follows: $28.1 million in fiscal 2014, $28.0 million in 2015, $27.9 million in fiscal 2016, $26.7 million in fiscal 2017, $26.3 in fiscal 2018 and $143.2 million thereafter. These future amortization expense amounts represent estimates, which may change based on future acquisitions, changes in foreign currency exchange rates or other factors.

Note 5. Product Warranty Costs

The Company generally offers its customers a warranty on products they purchase, although warranty periods vary by product type and application. During the three months ended November 30, 2011, the warranty reserve was reduced by $5.7 million, the result of a purchase accounting adjustment to Mastervolt’s initial estimated warranty reserve. The reserve for future warranty claims is based on historical claim rates and current warranty cost experience. The following is a rollforward of the accrued product warranty reserve (in thousands):

Note 6. Debt

The following is a summary of the Company’s long-term indebtedness (in thousands):

The Company’s Senior Credit Facility, which matures on February 23, 2016 provides a $600 revolving credit facility, a $100 million term loan and a $300 million expansion option, subject to certain conditions. Borrowings are subject to a pricing grid, which can result in increases or decreases to the borrowing spread, depending on the Company’s leverage ratio, ranging from 1.25% to 2.50% in the case of loans bearing interest at LIBOR and from 0.25% to 1.50% in the case of loans bearing interest at the base rate. At November 30, 2012, the borrowing spread on LIBOR based borrowings was 1.5% (aggregating 1.75% on the outstanding term loan). In addition, a non-use fee is payable quarterly on the average unused credit line under the revolver ranging from 0.2% to 0.4% per annum. At November 30, 2012 the available and unused credit line under the revolver was $596.3 million. Quarterly principal payments of $1.25 million began on the $100 million term loan on March 31, 2012, increasing to $2.5 million per quarter beginning on March 31, 2013, with the remaining principal due at maturity. The Senior Credit Facility, which is secured by substantially all of the Company’s domestic personal property assets, also contains customary limits and restrictions concerning investments, sales of assets, liens on assets, dividends and other payments. The two financial covenants included in the Senior Credit Facility agreement are a maximum leverage ratio of 3.75:1 and a minimum fixed charge coverage ratio of 1.50:1. The Company was in compliance with all debt covenants at November 30, 2012.

On April 16, 2012, the Company issued $300 million of 5.625% Senior Notes due 2022 (the “Senior Notes”). The Senior Notes require no principal installments prior to their June 15, 2022 maturity, require semiannual interest payments in December and June of each year and contain certain financial and non-financial covenants. The Company utilized the net proceeds from this issuance to fund the repurchase of all its then outstanding $250 million of 6.875% Senior Notes due 2017 at a cost of 104%, or $260.4 million.

In March 2012, the Company called all of its then outstanding $117.6 million of 2% Convertible Notes for cash at par. As a result of the call notice, substantially all of the holders of the 2% Convertible Notes converted them into newly issued shares of the Company’s Class A common stock, at a conversion rate of 50.6554 shares per $1,000 of principal amount (resulting in the issuance of 5,951,440 shares of common stock) while the remaining $0.1 million of 2% Convertible Notes were repurchased for cash.

Note 7. Fair Value Measurement

The Company assesses the inputs used to measure the fair value of financial assets and liabilities using a three-tier hierarchy. Level 1 inputs include quoted prices for identical instruments and are the most observable. Level 2 inputs include quoted prices for similar assets and observable inputs such as interest rates, foreign currency exchange rates, commodity rates and yield curves. Level 3 inputs are not observable in the market and include management’s own judgments about the assumptions market participants would use in pricing the asset or liability. The following financial assets and liabilities, measured at fair value, are included in the condensed consolidated balance sheet (in thousands):

At August 31, 2012, Mastervolt’s goodwill ($40.0 million) and tradename ($13.6 million) were written down to estimated fair value, resulting in a non-cash impairment charge of $62.5 million. In order to arrive at the implied fair value of goodwill, the Company assigned the fair value to all of the assets and liabilities of the reporting unit as if the reporting unit had been acquired in a business combination. The tradename was valued using the relief of royalty income approach. These represent Level 3 assets measured at fair value on a nonrecurring basis.

The fair value of the Company’s cash, accounts receivable, accounts payable, short-term borrowings and its variable rate long-term debt approximated book value at November 30, 2012 and August 31, 2012 due to their short-term nature and the fact that the interest rates approximated market rates. The fair value of the Company’s outstanding $300 million of 5.625% Senior Notes was $310.5 million and $309.8 million at November 30, 2012 and August 31, 2012, respectively. The fair value of the Senior Notes was based on quoted inactive market prices and are therefore classified as Level 2 within the valuation hierarchy.

Note 8. Earnings Per Share

The reconciliations between basic and diluted earnings per share are as follows (in thousands, except per share amounts):

At November 30, 2012 and 2011, outstanding share based awards to acquire 789,000 and 3,856,000 shares of common stock were not included in the Company’s computation of earnings per share because the effect would have been anti-dilutive.

As discussed in Note 6, “Debt” the Company issued 5,951,440 shares of common stock in the third quarter of fiscal 2012, in conjunction with the conversion of its 2% Convertible Notes, resulting in an increase in the weighted average common shares outstanding for basic earnings per share. However, the impact of the additional share issuance was already included in the diluted earnings per share calculation, on an if-converted method. The Company has also repurchased common shares on the open market in the last year, as well as issued new shares pursuant to equity compensation plans.

Note 9. Income Taxes

The Company’s income tax expense is impacted by a number of factors, including the amount of taxable earnings derived in foreign jurisdictions with tax rates that are higher or lower than the U.S. Federal statutory rate, permanent items, state tax rates and the ability to utilize various tax credits and net operating loss carryforwards. The Company adjusts the quarterly provision for income taxes based on the estimated annual effective income tax rate and facts and circumstances known at each interim reporting period.

The effective income tax rate was 18.5% and 23.1% for the three months ended November 30, 2012 and 2011, respectively. The decrease in the effective tax rate for the three months ended November 30, 2012, relative to the prior year, reflects the benefits of tax minimization planning, increased foreign tax credits and the utilization of net operating losses.

The gross liability for unrecognized tax benefits, excluding interest and penalties, increased from $24.6 million at August 31, 2012 to $25.3 million at November 30, 2012. Substantially all of these unrecognized tax benefits, if recognized, would reduce the effective income tax rate. In addition, as of November 30, 2012 and August 31, 2012, the Company had liabilities totaling $4.8 million and $4.5 million, respectively, for the payment of interest and penalties related to its unrecognized tax benefits.

Note 10. Segment Information

The Company is a global manufacturer of a broad range of industrial products and systems and is organized into four reportable segments: Industrial, Energy, Electrical, and Engineered Solutions. The Industrial segment is primarily involved in the design, manufacture and distribution of branded hydraulic and mechanical tools to the maintenance, industrial, infrastructure and production automation markets. The Energy segment provides joint integrity products and services, as well as rope and cable solutions to the global oil & gas, power generation and energy markets. The Electrical segment designs, manufactures and distributes a broad range of electrical products to the retail DIY, wholesale, original equipment manufacturer (“OEM”), solar, utility, marine and other harsh environment markets. The Engineered Solutions segment provides highly engineered position and motion control systems to OEMs in various vehicle markets, as well as a variety of other products to the industrial and agricultural markets.

The following tables summarize financial information by reportable segment and product line (in thousands):

In addition to the impact of changes in foreign currency exchange rates, the comparability of segment and product line information is also impacted by acquisition/divestiture activities and restructuring costs and the related benefits. Corporate assets, which are not allocated, principally represent cash and cash equivalents, capitalized debt issuance costs and deferred income taxes.

Note 11. Contingencies and Litigation

The Company had outstanding letters of credit of $10.9 million and $8.5 million at November 30, 2012 and August 31, 2012, respectively, the majority of which secure self-insured workers compensation liabilities.

The Company is a party to various legal proceedings that have arisen in the normal course of its business. These legal proceedings typically include product liability, environmental, labor, patent claims and other disputes. The Company has recorded reserves for loss contingencies based on the specific circumstances of each case. Such reserves are recorded when it is probable that a loss has been incurred as of the balance sheet date and can be reasonably estimated. In the opinion of management, the resolution of these contingencies, individually and in the aggregate, will not have a material adverse effect on the Company’s financial condition, results of operations or cash flows.

The Company has facilities in numerous geographic locations that are subject to a range of environmental laws and regulations. Environmental expenditures over the past two years have not been material. Management believes that such costs will not have a material adverse effect on the Company’s financial position, results of operations or cash flows.

The Company remains contingently liable for lease payments under leases of businesses that it previously divested or spun-off, in the event that such businesses are unable to fulfill their obligations. The discounted present value of future minimum lease payments for these leases was $12.0 million at November 30, 2012.

Note 12. Guarantor Subsidiaries

As discussed in Note 6, “Debt” on April 16, 2012, Actuant Corporation (the “Parent”) issued $300 million of 5.625% Senior Notes. All of our material domestic wholly owned subsidiaries (the “Guarantors”) fully and unconditionally guarantee (except for certain customary limitations) such debt on a joint and several basis. There are no significant restrictions on the ability of the Guarantors to make distributions to the Parent. The following tables present the results of operations, financial position and cash flows of Actuant Corporation and its subsidiaries, the Guarantor and non-Guarantor entities, and the eliminations necessary to arrive at the information for the Company on a consolidated basis.

Certain assets, liabilities and expenses have not been allocated to the Guarantors and non-Guarantors and therefore are included in the Parent column in the accompanying consolidating financial statements. These items are of a corporate or consolidated nature and include, but are not limited to, tax provisions and related assets and liabilities, certain employee benefit obligations, prepaid and accrued insurance and corporate indebtedness. Intercompany activity in the consolidating financial statements primarily includes loan activity, purchases and sales of goods or services and dividends. Intercompany balances also reflect certain non-cash transactions including transfers of assets and liabilities between the Parent, Guarantor and non-Guarantor, allocation of non-cash expenses from the Parent to the Guarantors and non-Guarantors, the impact of foreign currency rate changes and non-cash intercompany dividends.

CONDENSED CONSOLIDATING STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME

(In thousands)

CONDENSED CONSOLIDATING BALANCE SHEETS

(In thousands)

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

(In thousands)

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

(In thousands)

Item 2 – Management’s Discussion and Analysis of Financial Condition and Results of Operations

Actuant Corporation, headquartered in Menomonee Falls, Wisconsin, is a Wisconsin corporation incorporated in 1910. We are a global diversified company that designs, manufactures and distributes a broad range of industrial products and systems to various end markets. We are organized into four operating and reportable segments: Industrial, Energy, Electrical and Engineered Solutions.

Our long-term goal is to grow annual diluted earnings per share (“EPS”), excluding unusual or non-recurring items, faster than most multi-industry peers. We intend to leverage our leading market positions to generate annual internal sales growth that exceeds the annual growth rates of the gross domestic product in the geographic regions in which we operate. In addition to internal sales growth, we are focused on acquiring complementary businesses. Following an acquisition, we seek to drive cost reductions, develop additional cross-selling opportunities and deepen customer relationships. We also focus on profit margin expansion and cash flow generation to achieve our financial and EPS growth goals. Our LEAD (“Lean Enterprise Across Disciplines”) process utilizes various continuous improvement techniques to drive out costs and improve efficiencies across all locations and functions worldwide, thereby expanding profit margins. Strong cash flow generation is achieved by maximizing returns on net assets and minimizing primary working capital needs. Our LEAD efforts also support our Growth + Innovation (“G+I”) initiative, a process focused on improving core sales growth. The cash flow that results from efficient asset management and improved profitability is primarily used to fund strategic acquisitions, common stock repurchases and internal growth opportunities.

Our businesses provide a vast array of products and services across multiple customers and geographies which results in significant diversification. The long-term sales growth and profitability of our segments will depend not only on increased demand in end markets and the overall economic environment, but also on our ability to identify, consummate and integrate strategic acquisitions, develop and market innovative new products, expand our business activity geographically and continuously improve operational excellence.

The comparability of the operating results for the three months ended November 30, 2012 to the prior year period has been impacted by acquisitions, changes in foreign currency translation rates and the generally weaker economic conditions that existed in the end markets we serve. Listed below are the significant acquisitions completed since September 1, 2011.