Product Name : Twist Drill Bit;Material : HSS * Cutting Diameter : 14mm / 0.55"(9/16");Shank Diameter : 13mm/1/2" * Shank Size : 49 x 13mm / 1.9" x 0.51"(L*D);Flute Length : 109mm / 4.3" * Total Length : 158mm / 6.2";Color : Silver Tone * Weight : 135g;Package Content : 1 x 1/2" Reduced Shank Drill Bit