BOSCH CO2146 1-Piece 19/64 In. x 4-3/8 In. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal, High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium

Bosch CO2146 19/64" Cobalt Drill Bit. Cobalt formulation provides overall bit hardness of 66-68 HRC for penetration of very tough abrasive materials. Able to withstand very high temperature drilling applications for extended periods of time. Under high drilling temperatures bits stay sharper longer than standard HSS. Thicker web increases rigidity in hard materials. 135 degree split point starts drilling on contact. No walking or skating