Precise Precision 3/16″ 4 Pair Parallel Set – 3900-3004

• 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 within 0.001″ allowance.
• Complete with fitted durable plastic case.
• Sizes included are 3/16 X 1 x 6, 3/16 X 1-1/4 x 6, 3/16 X 1-1/2 x 6 and 3/16 X 1-3/4 x 6.

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