Bordo 12in Reduced Shank Drill 2250mm

2654-22.50 BORDO 1/2 in REDUCED SHANK DRILL 22.50mm Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating.This surface aids chip flow and heat dissipation.The drill is then ground a second time to achieve a bright finish on the shank and cutting edges.Specifications:Notched Point118 degHelix30 degDiameter22.5 mmFlute Length89 mmOverall Length152 mm