Pros: Prevents top surface edge chipping and tear-away.Cons: Less than optimal chip removal when dadoing or plunging. (Choose an up cut spiral bit for standard more efficient milling.)

Down cut endmills shear in a downward direction causing the uppermost layer of the material to be pressed down against the material just below it. This motion leaves a perfectly clean top surface edge. A concentration of wood chips in the work path will occur. Hose away excess wood chips to prevent bit breakage.

tabletop heavy duty corner cutter is designed to to provide multi-punching capabilities through a variety of interchangeable cutting tools. The corner rounder turns ordinary square cornered papers into striking, professionally looking documents with smooth round corners,  can cut plastic and paper cards, coroplast boards, card boards, booklets, pads, magnet sheets, thin aluminum sheets, etc. This all-metal machine is constructed with hardened steel cutting dies. It is a great tool for all users.