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- Stepped Sizes: 6mm, 9mm, 12mm, 14mm, 16mm, 17mm, 18mm, 19mm, 20mm, 22mm, 24mm, 25mm.
- Shank Size: 10mm Hex.
- Length: 3.1/4" (82mm).
6mm to 25mm High Speed Steel stepped drill has titanum coating and is hardened to HRC 62. Use on sheet metal to enlarge holes to the required size.