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Document and Entity Information - shares	9 Months Ended
	Oct. 03, 2015	Oct. 16, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Oct. 03, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	SNA
Entity Registrant Name	SNAP-ON Inc
Entity Central Index Key	0000091440
Current Fiscal Year End Date	--01-02
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		58,073,994

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