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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WHxsScou6ydEz3nTGeqrUhgGMUtD1qssR2CnSSC+RdTpsuFXc/tUu16t2pnYUw4J
 c6nsJ+kCKFXOZO0zVTjIHQ==

<SEC-DOCUMENT>0001245031-03-000058.txt : 20030902
<SEC-HEADER>0001245031-03-000058.hdr.sgml : 20030901
<ACCEPTANCE-DATETIME>20030902172358
ACCESSION NUMBER:		0001245031-03-000058
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030902
FILED AS OF DATE:		20030902

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SNAP ON INC
		CENTRAL INDEX KEY:			0000091440
		STANDARD INDUSTRIAL CLASSIFICATION:	CUTLERY, HANDTOOLS & GENERAL HARDWARE [3420]
		IRS NUMBER:				390622040
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		10801 CORPORATE DRIVE
		CITY:			KENOSHA
		STATE:			WI
		ZIP:			53141-1430
		BUSINESS PHONE:		4146565200

	MAIL ADDRESS:	
		STREET 1:		10801 CORPORATE DRIVE
		CITY:			KENOSHA
		STATE:			WI
		ZIP:			53141

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SNAP ON TOOLS CORP
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KELLY ARTHUR L
		CENTRAL INDEX KEY:			0001055687
		STANDARD INDUSTRIAL CLASSIFICATION:	FARM MACHINERY & EQUIPMENT [3523]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07724
		FILM NUMBER:		03876973

	BUSINESS ADDRESS:	
		STREET 1:		SUITE 2222
		STREET 2:		20 SOUTH CLARK STREET
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60603
		BUSINESS PHONE:		3125807832

	MAIL ADDRESS:	
		STREET 1:		SUITE 2222
		STREET 2:		20 SOUTH CLARK STREET
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60603
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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    <documentType>4</documentType><periodOfReport>2003-09-02</periodOfReport>
    <issuer>
        <issuerCik>0000091440</issuerCik>
        <issuerName>SNAP ON INC</issuerName>
        <issuerTradingSymbol>SNA</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001055687</rptOwnerCik>
            <rptOwnerName>KELLY ARTHUR L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>KEL ENTERPRISES L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>20 SOUTH CLARK STREET, SUITE 2222</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO,</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60603</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10367.199</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>20000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Trusts</value><footnoteId id="F1"/></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><
derivativeTable><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>24.84</value></conversionOrExercisePrice><exerciseDate><value>1994-04-22</value></exerciseDate><expirationDate><value>2004-04-22</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>1500</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1500</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>24.84</value></conversionOrExercisePrice><exerciseDate><value>1995-04-28</value></exerciseDate><expirationDate><value>2005-04-28</val
ue></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>1500</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1500</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>31.92</value></conversionOrExercisePrice><exerciseDate><value>1996-04-26</value></exerciseDate><expirationDate><value>2006-04-26</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTran
saction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>37.25</value></conversionOrExercisePrice><exerciseDate><value>1997-04-25</value></exerciseDate><expirationDate><value>2007-04-25</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><
derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>43.6875</value></conversionOrExercisePrice><exerciseDate><value>1998-04-24</value></exerciseDate><expirationDate><value>2008-04-24</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>31.938</value></conversionOrExercisePrice><exerciseDate><value>1999-04-23</value></exerciseDate><expirationDate><value>2009-04-23</value></expiratio
nDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>26.4375</value></conversionOrExercisePrice><exerciseDate><value>2000-04-28</value></exerciseDate><expirationDate><value>2010-04-28</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><val
ue>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>29.36</value></conversionOrExercisePrice><exerciseDate><value>2001-04-27</value></exerciseDate><expirationDate><value>2011-04-27</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHo
lding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>32.08</value></conversionOrExercisePrice><exerciseDate><value>2002-04-25</value></exerciseDate><expirationDate><value>2012-04-25</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>28.43</value></conversionOrExercisePrice><exerciseDate><value>2003-04-24</value></exerciseDate><expirationDate><value>2013-04-24</value></expirationDate><underlyi
ngSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeTransaction><securityTitle><value>Deferred Stock Unit</value></securityTitle><conversionOrExercisePrice><value>0</value><footnoteId id="F2"/></conversionOrExercisePrice><transactionDate><value>2003-09-02</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F3"/></transactionCoding><transactionAmounts><transactionShares><value>84</value></transactionShares><transactionPricePerShare><value>29
.50</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F4"/></exerciseDate><expirationDate><footnoteId id="F4"/></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>84</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>13131.082</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Shares reported are held by the Kelly Family Trust and the A.L. Kelly Trust for which the reporting person is a trustee and beneficiary.</footnote><footnote id="F2">1 for 1.</footnote><footnote id="F3">Payment of fees in sto
ck under the Corporation's Directors' 1993 Fee Plan.</footnote><footnote id="F4">Scheduled for issuance in equal annual installments after the earliest of November 15, 2012, or on death or retirement from the Board.</footnote></footnotes><remarks/><ownerSignature><signatureName>Jason D. Bartel under Power of Attorney for Arthur L. Kelly</signatureName><signatureDate>2003-09-02</signatureDate></ownerSignature></ownershipDocument>

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</SEC-DOCUMENT>
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