Parallel Set
*Accuracy" +/-.0002"
*4 pairs of parallels
*Hardened and ground for durability and accuracy.
*Sizes: 1", 1-1/4", 1-1/2" and 1-3/4" in height by 6" long.
*5/16" holes
*1-1/2" and 1-3/4" are 1/2" thick.
*1" and 1-1/4" are 3/16" thick.
*Width and height variations = max. .0004"
*Wooden case included.
