1-1/4" 32mm Width Sheet Metal Hole Saw Bit Ideal bit for cutting Sheet Metal or thinner metals * Safety collar stop prevents over-cutting for safer and faster performance * Special 8 tpi tooth design for smoother cuts in sheet metal * Constant pitch; m42 material * Self ejecting plug removal with spring * 1/4" quick change shank, ideal for use with any battery operated impact drivers & drills * 5/32" pilot drill for easy center locating and quicker penetration * Hole saw has a thin .020" (0.5 mm) sidewall blade thickness You are buying one (1) brand new, never used 1-1/4" Sheet Metal Hole Saw Bit. All these bits are great quality and we believe that you will be pleased with them. Any questions please feel free to email us or call us.