Features: *100% brand new and high quality *Use for sheet metal cutting, especially stainless steel 15-45mm *Cuts quick, precise holes in the stainless. *Over drill flange built in to prevent penetration outside the sheet metal. *Teeth design for fast cutting clean and round holes. *Cutting quick and precise holes in stainless steel, mild steel, iron, copper, brass and wood. Specifications: *Material: Cemented Carbide *Color: As pictures show *Diameter: Approx. 15mm,16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 28mm, 30mm, 32mm, 35mm, 40mm, 45mm, 50mm,55mm *Length: Approx. 90mm/ 3.6inch Package Contents: 1 Piece Hole Saw Drill Bit 1 Piece Wrench Our products are made of environmentally friendly materials, safe and non-toxic, and will not cause harm to the human body. Please read the product manual carefully before purchasing, and use it correctly according to the operation steps. If you encounter any difficulties or problems during use, please contact us in time, we will solve them for you as soon as possible. Your support is the driving force for us to move forward, and we look forward to sharing your experience and experiences with us. For the quality problems or defects of the product itself, we will provide unconditional return or repair service.