Precise Precision Parallel Sets

• 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.
• 3900-3004 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”.
• 3900-3008 Sizes included are 1/2 X 7/8 x 6”, 1/2 X 1 x 6”, 1/2 X 1-1/8 x 6”, 1/2 X 1-1/4 x 6”, 1/2 X 1-3/8 x 6”, 1/2 X 1-1/2 x 6”, 1/2 X 1-5/8 x 6”, 1/2 X 1-3/4 x 6”
• 3900-3009 Sizes included are 1/4 x 3/4 x 6”, 1/4 x 7/8 x 6”, 1/4 x 1 x 6”, 1/4 x 1-1/8 x 6”, 1/4 x 1-1/4 x 6”, 1/4 x 1-3/8 x 6”, 1/4 x 1-1/2 x 6”, 1/4 x 1-5/8 x 6”, 1/4 x 1-3/4 x 6".
• 3900-3014 Sizes included are 1/2 X 1 x 6”, 1/2 X 1-1/4 x 6”, 1/2 X 1-1/2 x 6” 1/2 X 1-3/4 x 6””.