Machinist's Thin Parallel Bar Set - 10 Pair 1/8" X 6" Our Part # ALL-54100 Each parallel is 1/8" thick x 6" long with 2 holes Includes 10 pairs of the following heights: 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2" & 1-5/8" Made from high quality tool steel- stress relieved against distortion, precision ground and hardened Parallel and accurate within +/- .0002" and made from high quality tool steel- stress relieved against distortion, precision ground and hardened