1/2 inch Shank Drill Bit High Speed Steel Twist Drill Bit Tool for Wood Metal (30mm)

1、Forged with high quality 9341 steel the head is quenched and heat treated it is high hardness and good wear resistance. 2、The cutter head adopts scientific design accuracy grinding technology good wear resistance and durability. 3、Large twist design enlarge chip removal slot glossy and flat high temperature resistance non?stick knife. 4、1/2 round shank design mainly used for boring and milling processing iron steel plastic wood copper aluminum and other metal materials. 5、100% brand new and high quality.