HSS Titanium Drill Bit Hole Saw Stainless Steel Metal Alloy Cutter 12 – 100 mm. The hole saw made of high-speed steel with titanium-coated cutter. Particularly suitable for iron plates, steel plates, aluminum alloys and all types of metal pipes. Fast and easy cutting. Specially designed for cutting sheet metal, through special heat treatment, sharp edge, high strength. Can work for 3mm stainless steel plates and can quickly punch the precise holes in steel, stainless steel, iron, copper, brass, aluminum, fiberglass, Formica and other laminates in seconds. Perfect for installing locks, knobs in doors and cabinets or drilling larger diameter holes through desks etc. Precision ground teeth for a perfect final cut. High quality high speed steel hole saw. Material: HSS, titanium coated. Drilling depth: Less than or equal to 3 mm. Triangular shank: Shank diameter 10 mm. Sizes: 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 16.5 mm, 17 mm, 18 mm, 18.5 mm, 19 mm, 19.5 mm, 20 mm, 20.5 mm, 21 mm, 21.5 mm, 22 mm, 22.5 mm, 23 mm, 23, 5 mm, 24 mm, 25 mm, 25.5 mm, 26 mm, 28 mm, 30 mm, 32 mm, 32.5 mm, 35 mm, 38 mm, 40 mm, 42 mm, 45 mm, 48 mm, 50 mm, 51 mm, 53 mm, 55 mm, 60 mm. 12-32mm pilot drill bit Content: 1 piece Pilot drill bit suitable for 12-32mm HSS hole saw. 35-100mm pilot drill Contents: 1 piece pilot drill suitable for 35-100mm HSS hole saw. According to your choice. Select the sizes you want from the dropdown box. We are committed to providing excellent customer service. Please allow up to 24 working hours for us to respond. Please contact me before you return it. Not accept returning of electronic components. Feedback is very important to us.