6542 High-speed Steel 11mm Twist Drill Bit 200mm Length Black Oxide M3x7mmx1mm Overall Size(Main body) : 55

Overall Size(Main body) : 55 x 29 x 32mm(L*W*H)

better wear resistance and longer service life than ordinary drills

shock proof

Back Ripple Hand Wheel come with removable revolving handle

the characteristics of insulation and high temperature resistance

6542 High-speed Steel 11mm Twist Drill Bit 200mm Length Black Oxide M3x7mmx1mm Overall Size(Main body) : 551. It is made of 6542 HSS (high speed steel) steel, which has good toughness and hardness, is not easy to break, and is easy to remove chips. Black oxide surface treatment, good rust resistance long durability. 2. The spiral groove design can avoid the displacement of the drill bit during the working process, and at the same time, the debris can be removed more quickly and easily. Sharp cutting edges provide smooth cutting without burrs. 3. The twist