woobles M35 Cobalt Twist Drill Bits - HSS-Co M35 Cobalt 13pcs 1.5-6.5mm

Features: The twist drill set is made of high-quality HSS M35, added with 5% cobalt, which has higher hardness and heat resistance. The Rockwell hardness is as high as 67, the cutting speed is fast, and the life is long, which is 12 times that of ordinary HSS drill bits. The cobalt drill set has high hardness and high toughness. Vacuum quenching, full grinding process, high temperature resistance and wear resistance. The straight shank can be firmly fixed and accurately centered, and is suitable for standard drill chucks and conventional round chuck chucks. Twist drill bits are accurate in size, long life, and durable. It can penetrate quickly under low pressure. The use can achieve faster cutting and longer service life. The 135° fast cutting point can be automatically centered, and the straight handle can be firmly fixed and accurately centered. Twist drills can drill efficiently without walking. Debris and particles can be removed more easily and quickly. The lowest drilling cost. The solid cobalt steel drill body can be sharpened again. Drill directly to the required size without pre-drilling. Specification: Material: HSS-Co M35 Cobalt Size(mm):1.5-6.5mm(1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0, 5.5, 6.0, 6.5mm) Color: Gold Product Name: M35 Cobalt Twist Drill Bits Set Shank Type: Straight Shank Measurement: System Metric Package List: 13pcs HSS Cobalt M35 Twist Drill set 1Pc Metal Case