Item Type: Carbide Hole Saw_x000D_ Material: Carbide_x000D_ Purpose: To make holes in steel plate, iron plate, stainless steel, aluminum plate, calcium silicate plate, plastic plate, resin plate, FRP plate_x000D_ Plate Cutting Thickness: Approx. 3mm / 0.1in_x000D_ Total Length: Approx. 88mm / 3.5in_x000D_ Inner Wall Thickness: Approx. 20mm / 0.8in_x000D_ Shank Diameter: Approx. 9.8mm / 0.4in_x000D_ Hole Diameter Specification: Approx. 50mm / 2in_x000D_ 51mm / 2.01in_x000D_ _x000D_ 53mm / 2.1in_x000D_ _x000D_ 55mm / 2.2in_x000D_ _x000D_ 60mm / 2.4in_x000D_ _x000D_ 65mm / 2.6in_x000D_ _x000D_ 70mm / 2.8in_x000D_ _x000D_ 75mm / 3in_x000D_ _x000D_ 80mm / 3.1in_x000D_ _x000D_ 85mm / 3.3in_x000D_ _x000D_ 90mm / 3.5in_x000D_ _x000D_ 95mm / 3.7in_x000D_ _x000D_ 100mm / 3.9in 1The main body of this hole saw is made of cemented carbide, which effectively extends the service life. 2Can make holes in steel plates, iron plates, stainless steel plates, aluminum plates, calcium silicate plates, plastic plates, resin plates, and FRP plates. 3This cutting edge is incisive, the opening is neat and glossy without broken edges, and the cutting resistance is small. 4Thefront and rear inclination angle tooth shape design, low resistance and strong perforation ability. 5This hole saw can be compatible with a variety of materials and work more efficiently. 1 x Hole Saw 1 x Spring 1 x Hex Wrench Not suitable for electric drills and impact drills, as well as materials such as tiles, concrete, wall, and stones.