DRILL BIT FOR MET.LONG. HSS DIN340 4.2MM PROLINE

. Apex angle of 135° with shear correction. Made entirely by grinding method - guarantee high accuracy and straightness of hole making, especially suitable for drilling through drill bushes. Long ground drill bits are used for drilling in steel, non-ferrous metals and plastics. Material - top-grade high-speed steel, refined. 1 piece