QuickLinks -- Click here to rapidly navigate through this document

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549


SCHEDULE TO
(Rule 14d-100)
TENDER OFFER STATEMENT PURSUANT TO SECTION 14(d)(1) or 13(e)(1)
OF THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 2)


Frisco Bay Industries Ltd.
(Name of Subject Company (Issuer))
 
6181708 Canada Inc.
The Stanley Works

(Name of Filing Persons, Offerors)
 
Common Stock, no par value per share
(Title of Class of Securities)
 
358751105
(CUSIP Number of Class of Securities)
 

Bruce H. Beatt
Vice-President, General Counsel and Secretary
The Stanley Works
1000 Stanley Drive
New Britain, CT 06053
(860) 225-5111

(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications on Behalf of Filing Persons)
 

Copy to:
Elizabeth Kitslaar
Jones Day
77 West Wacker
Chicago, IL 60601
(312) 782-3939


CALCULATION OF FILING FEE

Transaction Valuation(1)
$45,836,909.75
  Amount of Filing Fee(2)
$5,807.54
(1)
Estimated solely for purposes of calculating the amount of the filing fee. The transaction valuation is based upon the sum of (i) the product of shares of 1,971,657 Common Stock and 799,567 shares of Class A Common Stock at a price of U.S.$15.25 per share, net to the seller in cash, without interest, pursuant to the Offers To Purchase, (ii) the purchase of 233,575 shares of Common Stock to be issued upon the exercise of options to purchase shares of Common Stock, at a price of U.S.$15.25 per share (for an aggregate cost of $3,562,018.75), and (iii) the cash-out of 900 stock appreciation rights, at a price of U.S.$15.25 per share (for an aggregate cost of $13,725). The calculation of the filing fee is based on the Company's representation regarding the foregoing as of January 19, 2004.

(2)
The fee, calculated in accordance with Rule 0-11(d) of the Securities Exchange Act of 1934, as amended, and the Fee Rate Advisory #7 for fiscal year 2004, equals $126.70 per million of transaction value, or $5,807.54.

ý
Check the box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and date of its filing.
Amount Previously Paid:   $5,807.42   Filing Party:   The Stanley Works
Form or Registration No.:   Schedule TO   Date Filed:   January 30, 2004
o
Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

        Check the appropriate boxes below to designate any transactions to which the statement relates:

        Check the following box if the filing is a final amendment reporting the results of the tender offer: o



Amendment No. 2 to Schedule TO

        This Amendment No. 2 amends and supplements the Tender Offer Statement on Schedule TO filed with the Securities and Exchange Commission on January 30, 2004 and amended on February 6, 2004 (as amended, the "Schedule TO") by The Stanley Works, a Connecticut corporation ("Parent"), and 6181708 Canada Inc. (the "Offeror"), a corporation incorporated under the Canada Business Corporations Act and an indirect wholly owned subsidiary of Parent. The Schedule TO relates to the offer by the Offeror to purchase all of the outstanding Common Stock, no par value per share (the "Common Shares"), of Frisco Bay Industries Ltd., a corporation incorporated under the Canada Business Corporations Act (the "Company"), at a purchase price of U.S.$15.25 per Common Share, net to the seller in cash, without interest thereon, upon the terms and subject to the conditions set forth in the Offers To Purchase and Circular, dated January 30, 2004 and in the related Letter of Acceptance and Transmittal (collectively with the Offers To Purchase and Circular, the "Offering Documents"), copies of which were filed with the Schedule TO on January 30, 2004 as Exhibits (a)(1) and (a)(2), respectively. Simultaneously with the offer to purchase Common Shares, the Offeror is also offering to purchase all of the outstanding Class A Common Stock, no par value per share (the "Class A Shares"), of the Company at a purchase price of U.S.$15.25 per Class A Share, net to the seller in cash, without interest thereon, upon the terms and subject to the conditions set forth in the Offering Documents. This Amendment No. 2 to the Schedule TO is being filed on behalf of Parent and the Offeror.

        This Amendment No. 2 to the Schedule TO amends and/or supplements the Schedule TO as follows:

Item 1. Summary Term Sheet.

        The response to the question "Can the Offers Be Extended And, If They Are Extended, How Will I Be Notified?" under the caption "Summary Term Sheet" in the Offers To Purchase is hereby amended by deleting the third sentence of that response and replacing it in its entirety with the following:

        The response to the question "Until What Time Can I Withdraw Previously Deposited Shares?" under the caption "Summary Term Sheet" in the Offers To Purchase is hereby amended by deleting the first two sentences of that response and replacing them in their entirety with the following:

Item 4. Terms of the Transaction.

Section 4 of the Offers To Purchase (Conditions of the Offers)

        Paragraph (k) under the first subsection of Section 4 of the Offers To Purchase entitled "Conditions of the Offers—Conditions of the Common Shares Offer" is hereby deleted and replaced it in its entirety with the following:

2


        The first subsection of Section 4 to the Offers To Purchase entitled "Conditions of the Offers—Conditions of the Common Shares Offer" is hereby amended by adding the following paragraph as the penultimate paragraph of such subsection:

Section 5 of the Offers To Purchase (Extension and Variation of the Offers)

        Section 5 of the Offers To Purchase entitled "Extension and Variation of the Offers" is hereby amended by deleting the penultimate sentence of the 10th paragraph thereof and replacing it in its entirety with the following:

Section 7 of the Offers To Purchase (Payment for Deposited Shares)

        Section 7 of the Offers To Purchase entitled "Payment for Deposited Shares" is hereby amended by deleting the first sentence of the first paragraph thereof and replacing it in its entirety with the following:

Section 8 of the Offers To Purchase (Return of Deposited Shares)

        Section 8 of the Offers To Purchase entitled "Return of Deposited Shares" is hereby amended by deleting the first sentence thereof and replacing it in its entirety with the following:

3


Circular (Introduction)

        The second sentence of the second paragraph of the Circular is hereby deleted and replaced in its entirety with the following:

Section 2 of the Circular (The Company)

        The second subsection of Section 2 of the Circular entitled "The Company—Certain Management Estimates" is hereby amended by deleting the third sentence of the second paragraph thereof.

        The second subsection of Section 2 of the Circular entitled "The Company—Certain Management Estimates" is hereby amended by deleting the last paragraph thereof and replacing it in its entirety with the following:

Section 4 of the Circular (Background to the Offers)

        Section 4 of the Circular entitled "Background to the Offers" is hereby amended by deleting the first sentence of the second paragraph thereof and replacing it in its entirety with the following:

Section 5 of the Circular (Support Agreement)

        The subsection of Section 5 of the Circular entitled "Agreements Relating to the Offers—Support Agreement—The Offers" is hereby amended by adding the following after the second sentence thereof:

Section 15 of the Circular (Material Canadian Federal Income Tax Considerations)

        Section 15 of the Circular entitled "Material Canadian Federal Income Tax Considerations" is hereby amended by deleting the second sentence of the third paragraph thereof and replacing it in its entirety with the following:

4



SIGNATURE

        After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 18, 2004   THE STANLEY WORKS

 

 

By:

/s/  
BRUCE H. BEATT      
Name: Bruce H. Beatt
Title: Vice President, General Counsel and Secretary

 

 

6181708 CANADA INC.

 

 

By:

/s/  
BRUCE H. BEATT      
Name: Bruce H. Beatt
Title: Secretary

5




QuickLinks

Amendment No. 2 to Schedule TO
SIGNATURE