Uxcell Tap Bit Sets, M10 X 1 H2 Straight Flute Machine, Co) Twist Drill Bit Tap Bit Sets: Tap size: thread size: M10 x 1; accuracy: H2; total length: 75mm / 2.95". Drill bit size: cutting edge diameter: 9mm / 0.354"; total length: 125mm / 4.92". Thread Tap: Straight flute design, downward chip removal, fast tapping with accuracy. Suitable for processing through holes or shallow holes. For tapping aluminum, die steel, stainless steel, bronze, hard plastics. Provides high hardness and toughness for wear resistance. Drill Bit: Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. M35 5% cobalt high speed steel tool features high hardness (HRC65-66) and high red hardness, high wear resistance. Usage of Tap: Used on drilling machines, tapping machines, CNC and milling machines. Use with tapping oil to get higher quality threads and more durable taps. Machine taps are suggested to be used with tap collets with overload protection. Tips of Drill Bit: Suitable lubricant is conducive to cutting or cooling, making cutting easier, improving smoothness and dimensional accuracy. Select an appropriate feed rate and cutting speed to improve the tool life.