What are the differences between the center drill and the twist drill in its structure and use?
The product has good cutting and good chip removal. The center drill has two types: type A: without supporting the center of the cone drill, B type: nursing center of the cone drill, machining center hole diameter of d=2~10mm, usually by supporting the center of the cone drill without (type A); process long, high precision workpiece, in order to avoid 60 degrees centering the cone is damaged, the general nursing center of the cone drill (type B).
Center drill: prefabricated, precise positioning for hole processing and central hole machining on end faces of shafts and shafts. Guide the twist drill to reduce the error.
A twist drill is a tool for cutting round holes in a workpiece by rotating it in a relatively fixed axis. It is named because of its shape of spiral groove. The spiral groove has 2 grooves, 3 grooves or more grooves, but the 2 groove is the most common. The twist drill can be held in manual, electric, hand-held drilling tools, or drilling machines, milling machines, lathes and even machining centers. Drill materials are generally high speed tool steel or carbide.
