ER-20 3/32" Spring Collet ~ Made of high grade tool steel. ~ Hardened and precision ground. ~ Meets or exceeds Federal specifications. ~ Major diameter is .830". ~ Overall length is 1.230". ~ Collet must be placed into colle...

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ER-20 3/32" Spring Collet ~ Made of high grade tool steel. ~ Hardened and precision ground. ~ Meets or exceeds Federal specifications. ~ Major diameter is .830". ~ Overall length is 1.230". ~ Collet must be placed into collet chuck nut before inserting into collet chuck.

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