Parallelism+/-. 0002", Paired +/-. 0002" in Height
Made of high grade alloy steel, hardened and ground. 2 holes in each parallel
Measurements: 6" long x 1/8" thick
Hardness: 54-58 HRC
/8" from 1/2" to 1-5/8" Set includes a pair of each height: 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8, 1-1/2 and 1-5/8
Package Include: 10 x Parallels