Spline Shank Hammer drill bits

Machine from chrome steel fitted with carbide insert brazed at a very high temperature to withstand severe hearting when drilling hard materials. L-shaped flute profile immproves. For drilling in granite, concrete, stone, masonry,tiles and marble. Finish: Sandblasted, Zine-coated, Ni-coated Diameter:10-38mm(1-5/32" to 1-1/2"), length: 280-530mm 2 Edges DIAMETER FLUTE LENGTH OVERALL LENGTH 12 15/32 180 300 12 15/32 280 400 14 9/16 180 300 14 9/16 280 400 16 5/8 180 300 16 5/8