T38 T45 T51 hard rock drilling bits for quarry ,mining drilling
1 Presentation of Rock Drilling Bits
The United States imports of high-quality steel and best Chinese
carbide manufacturing , we produce all thread button drill by hot
pressing technique .
2 Materials and produce process details of T38 T45 T51 GT60 button Rock Drilling Bits
Material-We use 45CrNiMoVA and YK05 tungsten carbide to produce our
tapered drills , both of which are world-renowned drill production
materials .
Advanced technology---The tapered round bit drills we produce use
hot pressing technology , which is currently the most advanced
technology for the production of tapered round bit drills .
When the permeability drops or the cemented carbide shows signs of
damage , the button bit should be reground
A fixed grinding program usually leads to good working practices .
For example , the drill bit can be inspected and then reground
after a certain number of holes or at the end of the shift .
Grinding too early is not necessarily uneconomical , because there
are fewer carbides that need to be ground off . It is better to
re-grind rather than reduce productivity due to damage .
Correct grinding greatly increases the service life of the drill .
But just as importantly , it also improves the performance of the
entire drilling operation , especially the straightness of the hole
.
3 A comprehensive range of various button bits shown as below:
| Thread sizes | R25, R28, SSR28, R32, SSR32, R35,SST58, SST68, SGT60 ...... |
| Head diameters | 33mm ~ 152mm |
| Face designs | flat face, drop center, uni-face |
