Button bit ( R28)

Dimensions (D)

Flushing hole (mm)

Buttons (mm)

Angle

Class

Part no.

mm

inch

Gauge
No size

Front
No size

Gauge
No size

Front
No size

38
41
43
45

1 1/2”
1 5/8”
1 11/16”
1 3/4”

2×5
2×5
2×5
2×5

1×5
1×5
1×5
1×5

5×9
5×6
5×10
5×11

2×7
2×8
2×8
2×9

30°
30°
30°
30°

H
H
H
H

3038R2807
3041R2807
3043R2807
3045R2807

41

1 5/8”

2×5

2×5.5

6×9

2×8

30°

S

3041R2808

43
45

1 11/16”
1 3/4”

——
1×5

3×5
3×5

6×9
6×10

3×8
3×8

30°
30°

M
M

3043R2809
3045R2809

Reaming Tools  (R28)

Dimensions (D)

Flushing hole (mm)

Buttons (mm)

Angle

Part no.

mm

inch

Gauge
No size

Front
No size

Gauge
No size

Front
No size

Pilot bit 6°taper

40

1 37/64”

2×5.5

2×5

4×9

2×8

30°

3040R2806KP

Reaming bit 6°taper

76

3”

——

——

8×11

——

35°

3076R2808KR

Dome bit

76

3”

2×7

2×9

14×11

1×11

35°

3076R2815KD

Drill rod (R28)

Dimensions (L)

Dimensions (D)

Part no.

mm

ft

inch

 mm

in

Hex rod 28 with threads R28/R32

2800
3100
3700

9
10
12

2
2
2

28
28
28

1 1/8
1 1/8
1 1/8

2128R32R2828
2128R32R2831
2128R32R2837

Hex rod 32 with threads R28/R32

4310

14

2

32

1 1/4

2132R32R2843

Coupling  (R28)

Dimensions  (D)

Length(L)
mm

Part no.

mm

inch

R28-R28

37

1 29/64

160

MXQ-R283716

Crossover coupling R28-R32

45

1 3/4”

171

MXQ-R28R324517