uxcell 15mm Professional Hole Saw Cutter Twist Drill Bit Tool Kit Product Name : Hole Cutter;Material : Metal Pilot Drill Bit Diameter (Approx) : 3/16";Hole Saw Diameter (Approx) : 9/16" (15mm) Shank Diameter (Approx) : 5/16";Total Length (Approx) : 2 3/4" Weight : 44g Package Content : 1 x Hole Cutter