Description
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 streight 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 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
Specifications
Thread type: R32
diameter: 89mm/102mm/127mm
Button type: Spherical/parabolic
belongs to rock drilling tools parts
Taper Reaming Bits Diameter:64mm-102mm
Normal taper:6degree, 12degree
Thread Reaming Bits Diameter:89mm-152mm
Normal thread:R25, R28, R32, T38
Type:Pilot, Integral
Two types of reaming bits: button bit reamers and pilot
Top hammer bits with R32 Thread |
Part number |
Diameter |
Buttons |
Buttons front |
Flushing |
Flushing front |
Body |
Front |
gauge |
gauge |
41NF |
41mm |
6x8mm |
2x 8mm |
1 |
2 |
Normal |
Flat |
43NF |
43mm |
6x9mm |
2x8mm |
1 |
2 |
Normal |
Flat |
45NF |
45mm |
5x10mm |
2x9mm |
2 |
1 |
Normal |
Flat |
48ND |
48mm |
6x10mm |
3x9mm |
2 |
3 |
Normal |
Dropcenter |
48RD |
48mm |
6x10mm |
3x9mm |
2 |
3 |
Retrack |
Dropcenter |
51ND |
51mm |
6x10mm |
3x9mm |
0 |
3 |
Normal |
Dropcenter |
51RD |
51mm |
6x10mm |
3x9mm |
0 |
3 |
Retrack |
Dropcenter |