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Bestlink R28 Top Hammer Rock Drilling Thread Button Bit for Mining

Bestlink rock drilling thread button bits are widely used in all kinds of mining, drilling, quarrying, engineering, construction, water well drilling, oil exploring industries etc.

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  • R28 Thread drill bits
  • BESTLINK

Bestlink R28 Top Hammer Rock Drilling Thread Button Bit for Mining

Bestlink thread button bits are widely used in all kinds of mining, drilling, quarrying, engineering, construction, water well drilling, oil exploring industries etc.

The thread button bits are made with high quality of best quality alloy steel bar and tungsten carbides with superior wear resistance and impact toughness superior, through heat treatment so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy.

 

Thread Button BitDiameterCarbide size(mm)Flushing holeWeight
mminFrontGaugeFrontSide(kg)
Qty×sizeQty×size

R28(1 1/8")


351  3/82×75×8110.44
381 1/22×75×9110.56
411  5/82×85×9120.61
451  3/42×85×10120.78
481  7/82×95×11120.8
5122×105×11121.18
572  1/42×105×12121.26

 

Reaming toolsDFlushing hole (mm)Buttons (mm)
mminchFrontGaugeFrontGauge

Pilot  bit 6° taper


401 37/642×52×5.52×84×9

Reaming  bit 6° taper  


763---8×11

 

Drill rod (R28)L
mmftinch

Hex  rod 28 with thread R28/ R32


280092
3100102
3700122

Hex  rod 32 with threads R28/ R32  


4310142

 

 
Coupling sleeve(R28)
 
LD
mminch

R32-R28
 

160411 5/8

Crossover  coupling R28-R32

 

171451 3/4


Bestlink Factory

Xiamen Bestlink Factory Co., Ltd  is  committed  to  provide  the  best  drilling  and  cutting machine,  tools and accessories products in marble and granite stone quarrying,  as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite  and ornamental stones in china.  

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