Onsrud 72-057 Solid Carbide boring bit 2FL RH 5.00 mm x 30.00 mm x 57.00 mm OAL For Soft Wood, Hard Wood, Wood Composite, Laminated Wood, 10.00 mm Shank

Two style of tools are available in this series. Brad point drill is designed to cut blind holes and produce a clean edge on the top surface. 608 through drill is designed to produce through holes while providing clean edges on both sides.