Integral reaming drill bit SR28 Q10-76mm

Bloom reaming bit functions to enlarge a borehole and it is designed with a drill portion and a reamer portion. The drill portion is formed by cutting edges at the end of a plurality of flutes, and the reamer portion includes a first relief formed on each flute surface disposed at a predetermined angle with respect to the flute surface to form a first reamer cutting edge. A second relief is formed contiguous with the first face on each reamer portion and is disposed at a second angle, less than the first angle with respect to the flute surface.

Features:

Made from high alloy steel and tungsten carbide as same grade as internationally well-known brand

Apply "hot (thermal) -insertion" processing procedure to insert the buttons as same as internationally well-known brand

Entire CNC processing procedure ensure the quality consistency

Military grade requirements of heat-treatment guarantee durability

Fast penetration rates, and straight and clean hole quality. Long life of drilling holes.