Description
Hart (Bearing) Bur Set. M2 Steel is The Superior High Speed Steel. Guaranteed Hardness of Rockwell 63-65. The flutes are spiral cut to increases performance, retain sharpness and reduce loading. Set includes sizes: 1.1, 1.3, 1.5, 1.7, 1.9, 2.1, 2.3, 2.5, 2.7, 2.9, 3.1, 3.3, 3.5, 3.8, 4.0, 4.3 and 4.5mm.