Spiral Point Thread Tap and 3.3mm Drill Bit Set,Product Details1.Twist Drill Bit: Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. Cobalt high speed steel tool features high hardness (HRC65-66) and high red hardness, high wear resistance2.Spiral Point Tap: Spiral point design, downward chip removal, right hand thread cutting. Suitable for processing through-hole threads, and tapping aluminum, stainless steel, bronze, hard plastics. Titanium coating provides excellent corrosion resistance and wear resistance.3.Tap and Drill Bit: Tap thread size: M4 x 0.7, drill bit diameter: 3.3mm / 0.13". High-speed steel tool has high hardness and toughness for wear resistance. Good for general purpose applications.4.
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