Item Type: Tap Drill Bit Set Material: Bearing steel Uses: Screws, nuts, automobiles, machine tools, computer tapping Tap Model: M3 x 0.5 M4 x 0.7 M5 x 0.8 M6 x 1 Drill Bit Model (mm): 2.5/3.5/4.2/5.0 2.5mm / 0.1in 3.5mm / 0.14in 4.2mm / 0.17in 5mm / 0.2in T-Type Tap Wringer is Suitable for Taps: M3~M6 Package List 1 x T-Type Tap Wrench(with handle) 4 x Tap 4 x Drill Bit 1Using bearing steel material, has good impact toughness and fracture toughness 2The taps are more stable and the size is more standard, great replacement for the old one 3Adopting full grinding method, with highperformance bearing steel material, higher durability standard 4Straight flute chip removal and tapping is smoother, complete specifications, to meet the needs of daily use 5Including drill bits and taps, good workmanship and simple to install and remove