5/8 inch drive ratchet HD-7

1927 Catalog Drawing vs 1929 ratchet (15 tooth)

5/8 inch drive ratchets 

The 5/8 inch drive was first offered in 1923 and continued in some form into the 1970s. There is a huge gap in the catalogs and these ratchets were offered for 8 years (in the catalogs). The 3/4 inch ratchet is exactly the same. Snap on names these -– Heavy Duty – and then does not define the square size (5/8 drive). During the early period the 9/32, ½, 5/8 and 7/8 drives were the offerings. Later the 1/4, 3/8, 1/2, 3/4 were standards  

Stock Number

Description

Date range

HD-7

Ratchet (15 tooth)

1923 – 1931

HD-7A

Extra Socket receiving plug

1925 – 1931

HD-7B

Extra Socket receiving plug  5/8 handle 7/8 drive (an adaptor)

1925 – 1927

HD-7C

Plug with handle

1927 – 1929

HD-8

5/8 ½ ratchet plug

1929 – 1931

The HD-7 ratchet was riveted closed with 4 rivets. The plug is an HD7A

Ratchet

 

The ratchet is the standard – to reverse take the plug out and put it in the other way. 

The ratchet is the standard – to reverse take the plug out and put it in the other way. Very simple. 

Bridge from 5/8 to 3/4 inch drive

 

Here is a way to bridge the Heavy Duty – 5/8 inch drive to the “new” 3/4 inch drive

This allows a 5/8 ratchet to be used for 3/4 inch drive socket. Very simple.