Tolerance: Parallel +/-0.0003” on 2 sides, top and bottom.
Dimensions: Within +/-0.001” allowance.
Hardness: Hardened to HRC 55 TO 62 on 2 sides top and bottom only The holes are designed for easier handing and set-ups.
Made from fine quality tool steel stress relieved against distortion, precision, ground and z hardened.
These precision parallels are recommended for layout work, standards and set-ups.
MHC 637-7036 Sets of Parallels Description : Set of 4 parallels 1/2" in Plastic case
