Description
Pro-Series 10 Piece ER-16 Spring Collet Set With Rack (3901-5360) ~ Runout is = .0002"/.005mm. ~ Collets include 1/32-3/8". ~ Made of high grade alloy tool steel. ~ Hardened and precision ground to 44-48HRC. ~ Surface treated to reduce rust and improve hardness. ~ Exceeds Federal specifications. ~ Inside diameter has been ground to reach mirrow finish for increased grip force. Runout is = .0002"/.005mm. Collets include 1/32-3/8". Made of high grade alloy tool steel. Hardened and precision ground to 44-48HRC. Surface treated to reduce rust and improve hardness.






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