Dormer Hand Tap-Drill Set, Set of 21

• High Speed Steel (HSS) provides good hot hardness when drilling and tapping
• A022 drills have 135 degree split point provides self centering, low thrust and easier penetration
• A022 drills have TiN Coated Tip increases surface hardness, wear resistance and improves tool life
• Includes M3, M4, M5, M6, M8, M10, M12 Second and Plug Taps, with the relevant tapping drill to suit
• Rigid plastic case for safe storage and easy selection

Set HSS Hand taps for metric thread with stub drills in metal box for general use in steel <1200 N/mm², cast iron, copper and brass, aluminum alloys, plastics and fiber reinforced plastics thermosetting plastics E500: M3 - M12 A022: 2.5 - 3.3 - 4.2 - 5.0 - 6.8 - 8.5 - 10.2 mm