SPI Precision Steel Parallels, Matched Pair, 1/2 Thick x 6 Long, 1-1/2 Height – 13-205-0

SPI Precision Steel Parallels, Matched Pair1/2" Thick x 6" Long, 1-1/2" Height High grade hardened tool steel Precision ground on all four sides Parallelism within 0.0005". Paired width is 0.001". Hardness: 50 RC Finished, packed and sold in pairs Specific