1/2 X 6" 8 PAIR PARALLEL SET (3900-3008)

1/2 X 6" 8 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 1/2 X 7/8, 1/2 X 1, 1/2 X 1-1/8, 1/2 X 1-1/4, 1/2 X 1-3/8, 1/2 X 1-1/2, 1/2 X 1-5/8, 1/2 X 1-3/4".