Specifications 1.ER collet 2.Made in spring steel and rang ... /8,3/167/32,1/4,5/16,11/21,3/8YS0541ER2021311/16,3/32,1/8,3/16 ... ,7/32,1/4,5/16,11/21,3/8,13/32,7/16,1/2YS0542ER2526351/16 ... ,3/16,7/32,1/4,5/16,11/21,3/8,13/32,7/16,1/2,17 ... ,3/16,7/32,1/4,5/16,11/21,3/8,13/32,7/16,1/2,17 ... /32,9/16,5/8,21/32,11/16,3/4YS0544ER4041461/16,3/32,1/ ... /16,1/2,17/32,9/16,5/8,21/32,11/16,3/4,7/8,1YS0545 2012 ...