After drilling the pilot hole to a certain depth, when a larger diameter hole needs to be enlarged, a hole reaming bit is used.We produce pilot hole reaming bit and hole openers.The pilot hole reaming tool consists of a pilot adapter and a hole reaming bit; the hole opener is an integrated design.
HLDRILL can produce different reaming bit and pilot adapter.
Thread sizes:R25, R28 and R32.
Pilot adapter diameter: 26mm to 40mm.
Reaming bit diameter:64mm to 127mm.
Connection taper: 6°, 12°
Performance
• Carbide tungsten are installed on the reaming bit by hot-setting to ensure the accuracy and durability of the drill bit;
• High-quality drill bit materials and high-quality alloys ensure product reliability;
• Different types of drill bits designed for different drilling situations and rock conditions;
• Fast drilling speed and high efficiency;
• High cost performance, superior performance and reasonable price.
Application
Used in Blasting and drilling operations in tunneling,construction,mining, quarrying and other industries.
Specification
|
Drill bit |
Bit diameter |
No.×button diameter |
Flushing hole |
Weight |
HENGLONG PN |
||||
|
mm |
inch |
Center |
Gauge |
Angle |
Front |
Side |
|||
|
|
64 |
2 1/2" |
2×9 |
8×10 |
35° |
- |
- |
0.88 |
1441-6412-29/810-45-41 |
|
64 |
2 1/2" |
4×9 |
8×9 |
25° |
- |
- |
0.88 |
1441-6412-49/89-45-41 |
|
|
76 |
3" |
2×11 |
8×11 |
35° |
- |
- |
1.20 |
1441-7612-211/811-45-41 |
|
|
76 |
3" |
4×10 |
8×10 |
30° |
- |
- |
1.20 |
1441-7612-410/810-45-41 |
|
|
|
26 |
1 1/32" |
10×7 |
- |
- |
- |
1.30 |
1442-26R25-10/7-42-22 |
|
|
32 |
1 1/4" |
11×7 |
- |
- |
- |
1.50 |
1442-32R25-11/7-42-22 |
||
|
Drill bit |
Bit diameter |
No.×button diameter |
Flushing hole |
Weight |
HENGLONG PN |
||||
|
mm |
inch |
Center |
Gauge |
Angle |
Front |
Side |
|||
|
|
64 |
2 1/2" |
4×8 |
8×9 |
25° |
- |
- |
0.80 |
1441-646-48/89-45-31 |
|
76 |
3" |
2×11 |
8×11 |
35° |
- |
- |
1.20 |
1441-766-211/811-45-31 |
|
|
76 |
3" |
4×10 |
8×10 |
30° |
- |
- |
1.20 |
1441-766-410/810-45-31 |
|
|
89 |
3 1/2" |
4×11 |
8×11 |
35° |
- |
- |
1.70 |
1441-896-411/811-45-31 |
|
|
|
26 |
1 1/32" |
12X8 |
- |
- |
- |
- |
1.50 |
1442-26R32-12/8-42-22 |
|
32 |
1 1/4" |
12×8 |
- |
- |
- |
- |
1.50 |
1442-32R32-12/8-42-22 |
|
|
40 |
1 9/16" |
16×10 |
- |
- |
- |
- |
1.80 |
1442-40R32-16/10-42-22 |
|
|
|
89 |
3 1/2" |
4×10 |
8×12 |
35° |
- |
- |
1.80 |
1441-8912-410/812-45-31 |
|
102 |
4" |
4×12 |
8×12 |
35° |
- |
- |
2.10 |
1441-10212-412/812-45-31 |
|
|
127 |
5" |
4×12 |
8×12 |
35° |
- |
- |
4.00 |
1441-12712-412/812-45-31 |
|
|
|
40 |
1 9/16" |
16×10 |
- |
- |
- |
2.20 |
1442-40R32-16/10-42-22 |
|
|
45 |
1 3/4" |
18×10 |
- |
- |
- |
2.30 |
1442-45R32-18/10-42-22 |
||
Reaming bit 12°
Pilot adapter 12°
Reaming bit 6°
Pilot adapter 6°
Reaming bit 12°
Pilot adapter 12°
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