Rock Drilling, Underground Mining, Quarry, Blasting, etc
Name
Tungstern Carbide Threaded Button Rock Drill Bits
R28
Drill Bit
Bit Dia.
NO x Button x Dia.
Flushing Hole
Weight
mm
inch
Front
Gauge
Angle
Front
Side
（KG）
Spherical Buttons
37
1 29/64
2x7
5x9
30°
1
1
0.5
38
1 1/2
2x8
4x9
30°
1
2
0.6
38
1 1/2
2x7
5x9
30°
1
1
0.6
41
1 5/8
2x8
5x9
35°
1
1
0.7
43
1 2/3
2x9
5x9
30°
1
2
0.8
45
1 3/4
2x9
5x10
30°
1
2
0.9
45
1 3/4
3x8
6x9
30°
1
3
0.9
Parabolic Buttons
37
1 4/9
2x7
5x9
30°
1
1
0.5
38
1 1/2
2x8
4x9
30°
1
2
0.6
38
1 1/2
2x7
5x9
30°
1
1
0.6
41
1 5/8
2x8
5x9
35°
1
1
0.7
43
1 2/3
2x9
5x9
35°
1
2
0.8
45
1 3/4
2x9
5x10
30°
1
2
0.9
45
1 3/4
3x8
6x9
35°
1
3
0.9
48
1 7/8
2x9
5x11
30°
1
2
1.0
48
1 7/8
3x8
6x9
35°
1
3
1.0
38
1 1/2
14x8
1
2
0.6
41
1 5/8
14x8
1
4
0.7
43
1 2/3
14x8
1
4
0.7
45
1 3/4
14x8
1
4
0.9
51
2
14x8
1
4
1.1
Drill Roll
Bit Dia.
Dimaeter
Weight
mm
inch
mm
inch
（KG）
2400
7'10"
28
1 1/8
12.2
2750
9'
28
1 1/8
14.4
3700
12'11/2"
28
1 1/8
18.9
4000
13'1/8"
28
1 1/8
20.4
4310
14'11/2"
28
1 1/8
22.0
4920
16'11/2"
28
1 1/8
25.3
2900
9'61/8"
32
1 1/4
18.8
3090
10'11/2"
32
1 1/4
20.0
3700
12'11/2"
32
1 1/4
24.0
4310
14'11/2"
32
1 1/4
27.9
3090
10'11/2"
32
1 1/4
20.0
3700
12'11/2"
32
1 1/4
23.5
3090
10'11/2"
32
1 1/4
20.0
3700
12'11/2"
32
1 1/4
24.0
4000
13'13/8"
32
1 1/4
25.9
4310
14'11/2"
32
1 1/4
27.9
3050
10'
28
1 1/8
15.0
3050
10'
28
1 1/8
15.0
Coupling
Bit Dia.
Dimaeter
Weight
mm
inch
mm
inch
（KG）
150
5 7/8
44
1 3/4
1.0
150
5 7/8
40
1 37/64
0.9
170
6 3/4
55
2 5/32
2.0
160
6 5/16
45
1 3/4
1.2
160
6 5/16
56
1 13/64
2.5
Minimum Order Quantity
N/A
Price
Packaging Details
Standard Export Delivery Package
Delivery Time
7days
Payment Terms
T/T
Supply Ability
Based on Detailed Order
The Rock Drilling Bits are made from grade hard alloy and special steel, generally matched with the light-duty rock drill, to drill the rock hole within diameter of 50mm. The drill tools are used in metallurgy mine, geological exploration, water conservancy construction, electricity, traffic, tunnel, quarry, national defence stone project etc.
