Features Using 6542 high‑speed steel material, higher hardness and more durable. Applicable to some types of carbon steel and ordinary steel, copper and magaluma hole drilling. The tap drill bit can be used for drilling the steel plate even the 2mm/0.08in 304 steel plate. Complete hole drilling, tapping and deburring/countersinking in one operation with power drill(not included), saves labor and time. Titanium coating surface effectively prevents rust, wear‑resistance and corrosion‑resistance. Specification: Item Type: Drill Tap Material: High Speed Steel Color: Silver+Gold Total Tap Length: Approx. 68mm/2.7in M3 Parameters: Drill Bit Diameter: Approx. 2.5mm/0.098in Pitch: 0.5 Thread Tolerance Grade: H2 Function: Internal Chip Removal Thread Diameter: Approx. 3mm/0.12in M4 Parameters: Drill Bit Diameter: Approx. 3.3mm/0.13in Pitch: 0.7 Thread Tolerance Grade: H2 Function: Internal Chip Removal Thread Diameter: Approx. 4mm/0.16in M5 Parameters: Drill Bit Diameter: Approx. 4.2mm/0.17in Pitch: 0.8 Thread Tolerance Grade: H2 Function: Internal Chip Removal Thread Diameter: Approx. 5mm/0.20in M6 Parameters: Drill Bit Diameter: Approx. 5mm/0.20in Pitch: 1mm Thread Tolerance Grade: H2 Function: Internal Chip Removal Thread Diameter: Approx. 6mm/0.24in M8 Parameters: Drill Bit Diameter: Approx. 6.8mm/0.27in Pitch: 1.25 Thread Tolerance Grade: H2 Function: Internal Chip Removal Thread Diameter: Approx. 8mm/0.31in M10 Parameters: Drill Bit Diameter: Approx. 8.5mm/0.33in Pitch: 1.5 Thread Tolerance Grade: H2 Function: Internal Chip Removal Thread Diameter: Approx. 10mm/0.39in Package List: 1 x M3 Tap 1 x M4 Tap 1 x M5 Tap 1 x M6 Tap 1 x M8 Tap 1 x M10 Tap Package List 1 x M3 Tap 1 x M4 Tap 1 x M5 Tap 1 x M6 Tap 1 x M8 Tap 1 x M10 Tap