R32 38-76mm Drilling Accessories Integral Reaming Drill Bit For Tunneling
R32 38-76mm Drilling Accesories Integral Reaming Drill Bit For Tunneling
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.
A 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 pilot adapter 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.
Reaming ring of reaming tools, 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.
Specifications
| Product Name: | reaming bits for quarry | |
| Description: |
reaming bits for quarry are designed to enlarge pilot holes for development rounds, long hole blasting of drop raises and constructing service holes. With Pilot adaptors, the drilling direction can be ensured and accurate. |
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| Material: | High quality carbide + High quality steel | |
| MOQ: | No requirement for testing and trial order | |
| Specification: | ||
| Bit type: | Dome bit / Reaming bits | |
| Connection Angle: | 6 / 10 / 12 degree | |
| Diameter of Pilot adaptors: | 26 / 28 / 35 / 40 mm etc | |
| Diameter of reaming button bits: | 60 / 64 / 70 / 76 / 80 / 89 / 102 / 127 / 150 | |
| Thread type: | R25 / R28 / R32 / R38 | |
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