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Commitments and Contingencies (Tables)
3 Months Ended
Mar. 30, 2019
Commitments and Contingencies Disclosure [Abstract]  
Summary of Product Warranty Accrual Activity
Snap-on’s product warranty accrual activity for the three months ended March 30, 2019, and March 31, 2018, is as follows:
 
Three Months Ended
(Amounts in millions)
March 30, 2019
 
March 31, 2018
Warranty reserve:
 
 
 
Beginning of period
$
17.1

 
$
17.2

Additions
4.0

 
3.8

Usage
(3.8
)
 
(3.5
)
End of period
$
17.3

 
$
17.5