[Features] This is a step drill set that can drill multiple sizes of holes with just one drill. Highly durable titanium coating. It can drill holes from 3 to 22 mm, enlarge holes, and remove burrs. This set includes two sizes: 3-12mm and 4-22mm.
[Applications] For drilling holes, enlarging holes and removing burrs in thin steel plates, stainless steel plates, aluminum, etc.
【specification】 -
[Specification 2] Drill 1: Total length 70mm Sizes 3, 4, 5, 6, 7, 8, 9, 10, 11, 12mm Drill 2: Total length 80mm Sizes 4, 6, 8, 10, 12, 14, 16, 18, 20, 22mm Shaft width across flats: 1/4 (6.3 mm) Compatible materials: iron, stainless steel, aluminum, resin, wood, etc. Maximum plate thickness: Iron plate up to 2mm / Stainless steel plate up to 1mm Usable power tools: Electric drill, rechargeable drill driver