Reaming bit / Pilot adapter  6° taper

Gauge diameter(D)

Gauge 

angle [°]

Button × Button dia. [mm]

Flushing hole 

Weight

[Kg]

Part number

[mm]

[in]

Gauge

Face

Side

Face

64

2 1/2"

30

6×9

3×8

-

-

1.0 

WTHP64R11

76

3"

30

6×10

6×9

-

-

1.3 

WTHP76R11

89

3 1/2"

30

8×11

8×10

-

-

1.7 

WTHP89R15

Gauge diameter(D)

Carbide 

size [mm]

Button × Button dia. [mm]Flushing hole

Weight

[Kg]

Part number

[mm]

[in]

Gauge

Face

Side

Front

26

1"

8

-

-

1

1

1.4 

WR28THI26B

Reaming bit / Pilot adapter  12° taper

Gauge diameter(D)

Gauge 

angle [°]

Button × Button dia. [mm]

Flushing hole

Weight

[Kg]

Part number

[mm]

[in]

Gauge

Face

Side

Face

89

3 1/2"

30

8×11

4×10

-

-

1.6 

WTKP89R15

102

4"

35

8×14

6×12

-

-

2.3 

WTKP102R16

127

5"

35

12×13

8×13

-

-

4.8 

WTKP127R16

Gauge diameter(D)

Carbide 

size [mm]

Button × Button dia. [mm]Flushing hole

Weight

[Kg]

Part number

[mm]

[in]

Gauge

Face

Side

Front

40

1 5/8"

8

-

-

3

1

2.1

WR28TKI40B

Hex drifting rod

Thread

Hex

Length(L)

Weight

[Kg]

Part number

[mm]

[in]

[mm]

[ft/in]

R28 - R32

28

1 1/8"

2800

9'2"

14.1

EH28R32R28-2800

3100

10'2"

15.8

EH28R32R28-3100

3700

12'2"

19.2

EH28R32R28-3700

32

1 1/4"

4310

14'2"

23.0 

EH32R32R28-4310

* Custom lengths may be available upon request

Coupling sleeve

Thread

Outside diameter(D)

Length(L)

Weight

[Kg]

Part number

[mm]

[in]

[mm]

[in]

R28 - R28

41

1 5/8"

160

6 1/4"

1.0 

CR28D

R32 - R32

45

1 3/4"

150

6"

1.0

CR32D

Crossover coupling

Thread

Outside diameter(D)

Length(L)

Weight

[Kg]

Part number

[mm]

[in]

[mm]

[in]

R28 - R32

45

1 3/4"

171

6 3/4"

1.4

CR32R28

DRIFTING & TUNNELLING EQUIPMENT  

29

L

L

L

D

D

D

D

D

D