HHIP 3/16 X 6 4 PAIR PARALLEL SET (3900-3004)

3/16 X 1-3/4 X 6″ 4 Pair Parallel Set~ Made from fine quality tool steel that has been stress relieved against distortion.~ Precision ground and hardened. ~ These precision parallels are recommended for layout work, standards and set-up. ~ The holes are designed for easier handling and set-ups. ~ Case hardened RC 55 to 62 on 2 sides, top and bottom only. ~ Tolerance is Parallel to 0.0003 on 2 sides, top and bottom. ~ The dimensions are withing 0.001″ allowance. ~ Complete with fitted durable plastic case. ~ Sizes included are 3/16 X 1, 3/16 X 1-1/4, 3/16 X 1-1/2, and 3/16 X 1-3/4″. Made from fine quality tool steel that has been stress relieved against distortion. Precision ground and hardened. These precision parallels are recommended for layout work, standards and set-up. The holes are designed for easier handling and set-ups. Case hardened RC 55 to 62 on 2 sides, top and bottom only.