Drillpro 8pcs 1/2 Inch Shank HSS 4241 Twist Drill Bit Set 9/16 to 1 Inch Twist Drill for Wood Metal

Description Drillpro 8pcs 1 2 Inch shank HSS twist drill bit including 9 16 5 8 11 16 3 4 13 16 7 8 15 16 1 Specification Type 1 Bag 2 Aluminum boxMaterialHSS 4241HardnessHRC61Shank diameter1 2Flutes diameter9 16 5 8 11 16 3 4 13 16 7 8 15 16 1Length150mmQuantity8pcsFeatures For general using drilling in wood aluminum malleable iron steel plastic etc Material for high speed steel 4241 higher wear resistance toughness and bending resistance Increase the groove chip more smoothly drilling fast Sharp head through a special grinding edge to speed up the punching speed Full grinding process the surface is more smooth more smooth groove processed products less burr Package Included 8 x Drill BitsMore Details