Uxcell Square Mortising Chisel Cutting Spurs Bit Tool, 1/4" Product Name : Square Chisel Mortiser;Material : Metal;Chisel Side Length : 6.5mm / 1/4" Chisel Depth : 45mm / 1.8";Bit Shank Diameter : 4.4mm / 0.2" Bit Width (Bottom) : 6mm / 0.2";Flute Length : 78mm / 3.1" Shank Diameter(Max) : 19mm / 0.7";Color : Silver Tone, Black Weight : 130g;Package Content : 1 x Square Hollow Chisel Bit Mortiser