High Speed Steel Twist Drill Bit, 3.8mm Fully Ground Black Oxide 74mm Long 10Pcs 1.55mm direct replacement for the part

direct replacement for the part

The file usage frequency is 40 times per minute

0L L6 - Gas 2003

Air cylinders (also called pneumatic cylinders)

High Speed Steel Twist Drill Bit, 3.8mm Fully Ground Black Oxide 74mm Long 10Pcs 1.55mm direct replacement for the partDescription: 1. Made of high speed steel, with great toughness and hardness, not easy to break, easy chip removal, the drill quenching treatment, improve the hardness of use. Surface black oxide treatment, not easy to rust. 2. This twist drill is proper for electric drill, hand electric drill and impact electric drill. Suitable for Stainless steel, iron, copper, aluminum alloys, wood, plastic drilling and carving. 3. Spiral flute design for quick