R32 Drill Bits for Drifting and Tunneling

R32 Drill Bits made with high quality of best quality alloy steel bar and tungsten carbide, through heat treatment like Atlas. It can withstand the toughest rock drilling demands,and transmit intensive impact energy into the rock with the least possible loss of energy ....

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R32 Drill Bits are ideal for medium to hard ground, they are recognized by their characteristic raised buttons and grooved chipways and flushing holes on the face.

GMD rock tools for top hammer drilling are designed to transmit intensive impact energy into the rock with the least possible loss of energy. The result is good rock breakage, high penetration rates and high productivity. This, together with optimal hole quality, great reliability and long service life, gives the best possible blasting results, outstanding drill-steel economy and low total cost.

A comprehensive range of various button bits shown as below:

Product Name: R32 Drill Bits

Thread type: R32

Head diameters: 41mm ~ 76mm

Face designs; flat face,

Carbide shape: Dome, Ballistic , Semi-Ballistic,

Skirt designs: Standard, Retrac


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R32 Drill Bits for Drifting and Tunneling

Name

Code No.

Thread

Dia.(mm)

Gauge

Front

Skirt Design

Weight(kg)

Threaded Button Bits

Q7-41-R32

R32

41

5*9mm

2*9mm

Standard

0.61

Q7-43-R32

R32

43

5*9.5mm

2*8mm

Standard

0.63

Q7-45-R32

R32

45

5*10mm

2*9mm

Standard

0.76

Q7-48-R32

R32

48

5*11mm

2*9mm

Standard

0.79

Q7-51-R32

R32

51

5*13mm

2*10mm

Standard

0.84

Q9-45-R32

R32

45

6*9mm

3*8mm

Standard

0.72

Q9-48-R32

R32

48

6*9mm

3*9mm

Standard

0.78

Q9-51-R32

R32

51

6*10mm

3*9.5mm

Standard

0.83

Q9-57-R32

R32

57

6*11mm

3*10mm

Standard

1.14

Q9-64-R32

R32

64

6*11mm

3*11mm

Standard

2

Q8-41-R32

R32

41

6*8mm

2*8mm

Standard

0.61

Q8-43-R32

R32

43

6*8mm

2*8mm

Standard

0.7

Q8-45-R32

R32

45

6*9mm

2*9mm

Standard

0.74

Q12-64-R32

R32

64

8*10mm

4*10mm

Standard

2

Q14-76-R32

R32

76

8*11mm

6*11mm

Standard

2.76

Q9-64-R32

R32

64

6*10mm

3*10mm

Standard

1.91

Q9-76-R32

R32

76

6*13mm

3*11mm

Standard

2.55

Q9-89-R32

R32

89

6*14mm

3*13mm

Standard

3.45

Q9-48-R32-RC

R32

48

6*9mm

3*9mm

Retrac

1

Q9-51-R32-RC

R32

51

6*10mm

3*9.5mm

Retrac

1.12

Q9-57-R32-RC

R32

57

6*10mm

3*10mm

Retrac

1.6

Q12-64-R32-RC

R32

64

8*10mm

4*10mm

Retrac

2.23

Q14-76-R32-RC

R32

76

8*11mm

6*11mm

Retrac

3.3

Q9-64-R32-RC

R32

64

6*10mm

3*10mm

Retrac

2.2


Notes:

Special sizes may be available   upon request.


How to order?
Button Bit: Diameter + Thread + Skirt Shape + Face Design   + Insert Button Shape


How to Choose the Right Button Shape

Button Shape and Application

Button Shape

Application

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Domed/Round Button: Domed/Round buttons are suitable for very abrasive and very hard formations.

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Parabolic /Semi-Ballistic Button; Parabolic buttons are usually used as gauge buttons and front buttons, suitable for medium abrasive and hard formations.

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Ballistic Button : Ballistic buttons are usually used as front buttons, suitable for medium abrasive and medium hard formations. They can also be used as gauge buttons if the rock is soft.

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Sharp Buttons ; Sharp buttons are usually used as front buttons  for soft formations, suitable for high rotation speed and low bit broken rate soft rock.


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