Thin Parallels, 3" Long, 11 Pairs 3946  (Discontinued) 

This set contains 9 matching pairs of 3" long and 1/8" thin parallels and are great for the small 3"-4" vises used on most bench top mills.

These parallels are unique in that they step up in 1/16" increments from 1/2" to 1". This gives you more sizes you can use on small vises whose jaws are usually only about 1" in height. No need to toss the taller sizes in most standard sets.

- Heights are 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"

- Two pairs of shims are 9/64" and 5/32"

Also included are two pairs of shims, 9/64" and 5/32" high, which means that you can space things in 1/64" increments.

Parallel within 0.0002" on the top and bottom. The pairs are matched in height within 0.0002". Made of high-grade alloy steel hardened to 52 to 58 Rc