2Pcs 5.3mm M42 High Speed Steel Twist Drill Bits, TiCN Coated Round Shank Drill - 5.3x85mm
$16.49
Cutting Hardness: HRC67-70, Drill Bit Diameter: 5.3mm / 0.21-inch, Flute Length: 50mm / 1.97-inch, Shank Diameter: 5.3mm / 0.21-inch, Total Length: 85mm / 3.35-inch; 2 x M42 High Speed Steel Twist Drill Bit M42 steel is high cobalt high-speed steel.