Twist Drill Bit Iron-Containing Full-Grinding Straight Shank Drill Bit
- 1.HSS High Speed Steel Forging: High Speed Steel quenching forging, high hardness, stable performance, sharp and durable.
- 2.Fully Grinded Sharp Blade: Spiral chip removal space is large, full Grinding is more sharp and easier.
- 3.Fast and sharp: Non-sticking knife, fast and sharp, specializing in stainless steel
- 4.Bright finish: Classic M35 High Speed Steel construction with Bright Finish for proven capability and durability.
- 5.Precise Countersinking Hole: the cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.
