8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

___________________________________________________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): August 21, 2007

_________________________

ILLINOIS TOOL WORKS INC.

(Exact name of registrant as specified in its charter)

Delaware	1-4797	36-1258310
(State or other jurisdiction of incorporation)	(Commission File No.)	(I.R.S. Employer Identification No.)
3600 West Lake Avenue, Glenview, IL		60026-1215
(Address of principal executive offices)		(Zip Code)

Registrant's telephone number, including area code: 847-724-7500

NotApplicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[ ]	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[ ]	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
[ ]	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
[ ]	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01.Other Events

On August 21, 2007, Illinois Tool Works Inc. (the "Company") announced that its Board of Directors approved a new share repurchase program which authorizes management to buy back up to $3 billion of the Company's common stock over an open ended period. The full authorization represents approximately 55 million shares based on the Company's closing share price on August 20, 2007.

Item 9.01. Financial Statements and Exhibits

(d)	Exhibits
	Exhibit Number	Exhibit Description
	99.1	Press Release issued by Illinois Tool Works Inc. dated August 21, 2007 (furnished pursuant to Item 8.01).

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ILLINOIS TOOL WORKS INC.
Dated: August 21, 2007	By: /s/ Ronald D. Kropp
	Ronald D. Kropp
	Senior Vice President and Chief Financial Officer
	(Principal Accounting Officer)

EX-99.1

Exhibit 99.1

ITW NEWS RELEASE

______________________________________________________________________________

ITW Board of Directors Approve New $3 Billion Share Repurchase Authorization; Company Increases 2007 Share Repurchase Range

GLENVIEW, ILLINOIS—(August 21, 2007)—Illinois Tool Works Inc. (NYSE:ITW) today announced that its board of directors approved a new share repurchase program which authorizes management to buy back up to $3 billion of the company’s common stock over an open-ended period of time. The full authorization represents approximately 55 million shares based on the company’s closing share price on August 20, 2007.

The company’s existing share repurchase authorization, announced in August of 2006, consisted of 35 million shares. There are approximately 12 million shares remaining under this authorization. Thus far in 2007, the company has spent a total of $680 million to repurchase shares.

The company also said today that it would increase its share repurchase forecast for 2007. The range for share repurchases for full-year 2007 has been increased to $1.1 billion to $1.4 billion from the prior range of $700 million to $900 million.

“As we continue to look for ways to optimize our balance sheet and make the best use of our strong free operating cash flow, share repurchases will play an important role in that process,” said David B. Speer, chairman and chief executive officer. “We’ll also continue to utilize free cash for future acquisitions as well as dividends.”

ITW is a $14.1 billion in revenues diversified manufacturer of highly engineered components and industrial systems and consumables. The company consists of approximately 750 business units in 49 countries and employs some 55,000 people.

CONTACT: John Brooklier, 847-657-4104 or jbrooklier@itw.com