Thin Parallels, 3" Long, 11 Pairs

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

Vise jaws are often too deep for the work. In general, you want the top of the work piece to extend above the top of the vise jaws. To fill the gap from the bottom of the work piece to the "ways" of the vise, you use parallels.

Parallels are strips of metal that have been carefully ground so that the top and bottom edges are parallel with very tight tolerances. They usually come in matched pairs. Place one parallel adjacent to each jaw in the vise and place the work piece so it rests on the parallels.