IRWIN HSS PRO - Steel 10 4.2mm

The IRWIN HSS PRO Drill Bit Bulk Pack includes 10 high-speed steel (HSS) drill bits, each measuring 4.2 millimeters in diameter and 75 millimeters in length, with a working length of 43 millimeters. These bits are specifically designed for drilling through steel, steel castings, alloyed and non-alloyed steel, cast iron, non-ferrous metals, and plastics. The 118 split point shape ensures optimal centering and a faster drilling rate, while the high elasticity of the HSS material minimizes the risk of breakage, even with smaller diameters. The bits feature close tolerances and high concentricity for maximum drilling precision.