Fast single tool changing - no need to touch drawbar after inserting master holder. Spring collets are hardened and ground for maximum holding power and ultra precision. MT3 shanks ultilize a drawbar thread: 1/2 - 13.Collets must be snapped into nut before inserting and tightening into holder. 1/8", 3/16", 1/4", 5/16", 3/8. The item "Bodee MT3 Quick Change Collet Chuck Set Full Grip 16PCS" is in sale since Wednesday, July 10, 2019. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Workholding\Other Workholding". The seller is "toolots" and is located in Cerritos, California. This item can be shipped to United States.