HHIP 3900-5221 ER-25 Spring Collet, 1/2"
ER-25 1/2" Spring Collet ~ Collet has a range of .472-.511. ~ Made of high grade tool steel. ~ Hardened and precision ground. ~ Meets or exceeds Federal specifications. ~ Major diameter is 1.020". ~ Overall length is 1.390". ~ Collet must be placed into collet chuck nut before inserting into collet chuck.