Specifications

Standard/Retrac: Dia 35-127mm
Thread:R22,R25,R28,R32,R35,T45,T51...
Taper angle a=4,4 46',7,11,12
Socket inside Dia.15,19,22.

R32 R38 T38 T45 T51 Tapered and Threaded drill bit for rock drilling in quarry and mine

(Taillant conique et Taillant fileté Rétro/Standard de Xiamen Bestlink ) 

 

Our drill bits are made with high quality alloy steel bar and tungsten carbides, through heat treatment.

So, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks.

In addition, we can design customized drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.

 

Thread bit Caracteristique:

(1)Bit body type: Standard/Retrac

(2)R thread: R22 R25 R28 R32 R38
(3)T thread: T38 T45 T51 ST58 GT60 

(4)Bit diameter: 32-127mm.

(5)Drill bit models: cross bit/button bit

(6)Button bit shape: spherical/parabolic

(7)Bit face shape: flat face and drop centre

 

Taper bit  Caracteristique:

(1)Button bit taper angle: 4°,4°46″,6°,7°,11°,12° 

(2)Models:chisel bit/cross bit/button bit 

(3)Diam:20-45 mm 

(4)Button bit shape:spherical/parabolic  

(5)Socket inside diameter:15/19/22/25(mm) 

 

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.