Feature: 1. Each edge is a part of the cutting work, making holes not easy to collapse, practical and efficient. 2. Drilling of various metal plates such as stainless steel plates, steel, castings, aluminum alloys, iron, etc. 3. And drill hole saw set keeps excellent chip evacuation performance, of sharpness edge and wear resistance. 4. Suitable for drilling holes in drawers, plastic products, wood, plywood, this drill bit is also suitable for installing locks, knobs or drilling larger diameter holes in desks and cabinets. 5. The hole saw adopts a spring design, which is beneficial to chip removal and high drilling efficiency; the hex handle is tightly grasped, which can perforate in stainless steel, mild steel, iron, copper, brass and wood. Specification: Item Type: Hole saw drill bt Material: Alloy Color: Silver Length: Approx. 67mm / 2.6in Outer Diameter: Approx. 16mm / 0.6in Approx. 18mm / 0.7in Approx. 20mm / 0.8in Approx. 22mm / 0.9in Approx. 25mm / 0.98in Approx. 26mm / 1.02in Approx. 28mm / 1.1in Approx. 30mm / 1.2in Approx. 32mm / 1.3in Approx. 35mm / 1.4in Approx. 38mm / 1.5in Approx. 40mm / 1.6in Approx. 45mm / 1.8in Approx. 48mm / 1.9in Approx. 50mm / 2in Approx. 53mm / 2.1in Approx. 55mm / 2.2in Approx. 60mm / 2.4in Approx. 65mm / 2.6in Approx. 70mm / 2.8in Approx. 75mm / 3in Approx. 80mm / 3.1in Approx. 100mm / 3.9in Applicable Thickness: 2-5mm stainless steel plate, 15mm metal plate . Package List: 23 x Drill Bit