For milling machine, lathe, drilling machine, wood working machine.The shank with screw can be tight and flex for you.Should work with power drill and 775 Motors (not included)Capacity:0.6-6mmMount:B1..

Features:100% brand new and high quality.This 0.5-3mm twist drill chuck set is made of copper with excellent workmanship.Copper miniature drill chuck, and drill mix to form a hand drillExcellent workm..