Greenlee 38507 Round Shank with Three Flat Arbor for 9/16 to 1-3/16-Inch Hole Saws Accessories Flutes have a thin nitro-carburized

Flutes have a thin nitro-carburized surface to provide extra wear resistance along the cutting edge of the point

The product is 61595 SPRING

Heavy duty bar stock provides maximum leverage for moving rocks

Included components: Cup Brushes

Greenlee 38507 Round Shank with Three Flat Arbor for 9/16 to 1-3/16-Inch Hole Saws Accessories Flutes have a thin nitro-carburizedHigh speed steel (Pilot drill bit) material; 9 16 inch Min. Hole saw size; 1 3 16 inch Max. Hole saw size; 1 4 inch Shank size; Yes supplied with pilot Drill; round with 3 flat shank shape; chuck size 1 4 inch From the Manufacturer The best arbor in the industry ensures a solid connection without any gaps or wobbling. Arbors include replaceable high speed pilot drill. Pilot drills have unique split point tip design. Use with Greenlee bimetal hole