9.1mm M42 High Speed Steel Twist Drill Bits, TiCN Coated Round Shank Drill Bit - 9.1x125mm
$21.49
Cutting Hardness: HRC67-70, Drill Bit Diameter: 9.1mm / 0.36-inch, Flute Length: 80mm / 3.15-inch, Shank Diameter: 9.1mm / 0.36-inch, Total Length: 125mm / 4.92-inch; 1 x M42 High Speed Steel Twist Drill Bit M42 steel is high cobalt high-speed steel.