R25 Standard Body Thread Drill Bit for Drifting and Tunneling

1. Made by high quality alloy steel bar and tungsten carbides. Through heat treatment, they are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks.
2. In addition, customized thread button drill bits are available according to different drilling application, and custom drill bits are applicable to drill soft rock, medium hard rock and hard rock.

New Design - Uniface Bit Face Degign
The Uniface comprises a series of three new, universal bit-face designs,
one for Ø51-64mm bits;
one for Ø70-96mm bits;
one for Ø102-152mm bits.
 
The guidelines for choosing the right Uniface bit are:
1. spherical buttons for very hard rocks;
2. ballistic buttons for less-hard rocks;
3. regular bit-skirt for solid homogenous formations;
4. retrac skirt for mixed, jointed or fractured formations. 

Caracteristique:
(1)Bit body type: Standard/Retrac/Straightrac
(2)Bit face shape: flat face/drop centre/Uniface
(3)R thread: R22 R25 R28 R32 R38
(4)T thread: T38 T45 T51 ST58 GT60 
(5)Bit diameter: 32-152mm.
(6)Drill bit models: cross bit/button bit
(7)Button shape: spherical/parabolic


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Competitive products: 
Tapered chisel bits and cross bit: reasonable selection of steel and tungsten carbide which perfectly bonded by high-frequency welding.
Tapered button bits: Cold forging process and excellent heat treatment exactly combined with the cold inlaying technique.
Thread cross and button bits: Correct selection of material and hot mounting process.
DTH bits: Perfect combination of material selection, heat treatment, and cold inlaying process.
DTH hammer: Perfect combination of accurate gas distribution, impeccable processing process, selection of material and heat treatment.