Quarrying rock tools drill mining taper rock drilling bits 34 mm
button bit
1 Product description of Rock Drilling Bits
Material - 45CrNiMoVA we use to produce our tungsten carbide and
YK05 cone drill bit , both of which are world famous drill
production materials .
Advanced technology --- we produce round cone drill bit hot
pressing technology , which is currently producing cone drill round
of the most advanced technology .
When the permeability decreased or carbide signs of damage , should
be re-grinding button drill
Fixed grinding program will usually bring good working practices .
For example , check bits , and then again at the shift end milling
or after a certain number of holes. Premature grinding is not
necessarily uneconomic , because less needs worn carbide . The best
reground and not damaged and reduced productivity .
Correct grinding greatly increases the service life of the drill
bit. But equally important , it also improves the performance of
the entire drilling operation , especially straightness of the hole
.
Grinding cone drill holes is the most popular cone drill bit having
a head diameter selected from a variety of 48 mm to 26 mm . With
carbide drill thermocompression scalloped skirt portion , the
tapered scalloped drill bit having good properties and excellent in
life .
2 Product Data of Rock Drilling Bits
We produce various tapered button bits of different degrees as
follows :
Bit diameter : 32mm ~ 41mm;
Tapered degree : 4°46’ , 6° , 7° , 11° , 12° ;
Shank sizes: Hex . 19mm , Hex , 22mm and Hex . 25mm ;
Buttons configuration : 4 buttons , 5 buttons , 6 buttons , 7
buttons , 8 buttons
| Diameter | Buttons*De | Flushing hole | Skirt Length |
| mm | Gauge | Front | Side | Front | mm |
| 32 | 3x8mm | 2x7mm | 1 | 1 | 50,55,60 |
| 32 | 4x7mm | 2x7mm | 1 | 1 | 50,55,60 |
| 32 | 5x7mm | 2x7mm | 1 | 1 | 50,55,60 |
| 32 | 6x7mm | 2x7mm | 1 | 1 | 50,55,60 |
| 32 | 6x7mm | 2x7mm | 1 | 2 | 50,55,60 |
| 34 | 3x8mm | 2x7mm | 1 | 1 | 50,55,60 |
| 34 | 4x8mm | 2x7mm | 1 | 2 | 50,55,60 |
| 34 | 5x7mm | 2x7mm | 1 | 1 | 50,55,60 |
| 35 | 6x7mm | 2x7mm | 1 | 2 | 50,55,60 |
| 36 | 3x9mm | 1x8mm | 1 | 1 | 50,55,60 |
| 36 | 3x9mm | 2x7mm | 1 | 1 | 50,55,60 |
| 36 | 4x8mm | 2x7mm | 1 | 1 | 50,55,60 |
| 36 | 4x8mm | 2x7mm | 1 | 2 | 50,55,60 |
| 36 | 5x8mm | 2x7mm | 1 | 1 | 50,55,60 |
| 36 | 5x8mm | 2x7mm | 1 | 2 | 50,55,60 |
| 38 | 3x9mm | 1x9mm | 1 | 1 | 50,55,60 |
| 38 | 3x9mm | 2x7mm | 1 | 1 | 50,55,60 |
| 38 | 5x9mm | 2x7mm | 1 | 1 | 50,55,60 |
| 38 | 5x9mm | 2x7mm | 1 | 2 | 50,55,60 |
| 40 | 3x9mm | 1x9mm | 1 | 1 | 50,55,60 |
| 40 | 3x9mm | 2x7mm | 1 | 1 | 50,55,60 |
| 40 | 5x9mm | 2x7mm | 1 | 1 | 50,55,60 |
| 40 | 5x9mm | 2x8mm | 1 | 2 | 50,55,60 |
| 41 | 5x9mm | 2x8mm | 1 | 2 | 50,55,60 |
