Palmgren's parallel sets are engineered and made from tool steel, hardened and precision ground on all 6 faces to an exact surface finish. Ideal for use with a mill, drill, CNC machine, or any other machining operation that requires work to be held in
Product Features:
Set includes plastic case, 8 pair of parallels and 1 pair position clamps. Hardness: HRC 50 to HRC55 degrees. 2 pieces - 0.197" x 0.630" x 3.937". 2 pieces - 0.236" x 0.709" x 3.937". 2 pieces - 0.315" x 0.945" x 3.937".