Hole Opener Drill Reaming Button Bits
Adhering towards the theory of “quality, support, efficiency and growth”, we’ve attained trusts and praises from domestic and international client for 127mm Hole Opener Drill Reaming Button Bits, Besides, our business sticks to good quality and realistic rate, and we also give fantastic OEM providers to quite a few famous brands.
Adhering towards the theory of “quality, support, efficiency and growth”, we’ve attained trusts and praises from domestic and international client for China Button Bit and Button Bits, We integrate all our advantages to continuously innovate, improve and optimize our industrial structure and product performance. We will always believe in and work on it. Welcome to join us to promote green light, together we will make a better Future!
Reaming drilling tools
Reaming drilling tools are used when a large diameter is needed to be reamed out after a pilot hole is drilled to a depth. We manufacture pilot reaming drilling tools, domed reaming button bits and adapter reaming button bits. Pilot reaming drilling tools consist of pilot adapters and reaming button bits; however, both domed reaming button bits and adapter reaming buttons bits are one-piece designed.
Parameters
• Thread size: R25, R28, and R32.
• Pilot adapter head diameter: 26mm to 40 mm.
• Pilot bit degree: 6°, 12°
• Reaming button bit diameter: 64mm to 225mm.
• Reamer button bit degree: 6°, 12°
Features
• Alloy buttons are hot mounted into the drill bit, ensuring the bit good accuracy and durability;
• Reliability ensured by premium drill bit materials and premium alloy button;
• Different types designed for different drilling scenarios and rock conditions;
• High speed and drilling efficiency;
• Cost-effective, good performance with reasonable price.
Applications
Drilling works for blasting duties in tunneling, construction, mining, quarrying, etc.
| 6°Reaming drilling tools |
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| 12°Reaming drilling tools |
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| Reaming Bits |
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| Reaming bit | Carbide dimension | Dimensions D | Flushing hole | |||||
| Gauge | Front | |||||||
| [No.] | [mm] | [No.] | [mm] | [mm] | [in] | Front | Side | |
 |
8 | 9.5 | 4 | 8 | 64 | 2 1/2″ | / | / |
| 6 | 11 | 3 | 11 | 76 | 3″ | |||
| 8 | 12.7 | 4 | 11 | 89 | 3 1/2″ | |||
| Pilot adapter | Thread | L | D | Flushing hole | |||
| [mm] | [in] | [mm] | [in] | Front | Side | ||
 |
R 25 | 300 | 11 13/16″ | 28 | 1 3/32″ | 1 | 1 |
| R 28 | 300 | 11 13/16″ | 28 | 1 3/32″ | 1 | 1 | |
| R 32 | 300 | 11 13/16″ | 28 | 1 3/32″ | 1 | 1 | |
| Pilot adapter | Thread | Carbide dimension | L | D | Flushing hole | ||||||
| Gauge | Front | ||||||||||
| [No.] | [mm] | [No.] | [mm] | [mm] | [in] | [mm] | [in] | Front | Side | ||
 |
R 25 | 4 | 6.3 | 1 | 6.3 | 267 | 10 1/2″ | 26 | 1 1/32″ | 1 | 1 |
| R 28 | 4 | 6.3 | 1 | 6.3 | 267 | 10 1/2″ | 26 | 1 1/32″ | 1 | 1 | |
| R 32 | 4 | 6.3 | 1 | 6.3 | 267 | 10 1/2″ | 26 | 1 1/32″ | 1 | 1 | |
| Pilot rod | ROD CROSS SECTION | L | D | ||
| [mm] | [in] | [mm] | [in] | ||
 |
HEX 22 | 400 | 1′ 4″ | 27 | 1 1/16″ |
| HEX 22 | 800 | 2′ 7″ | 27 | 1 1/16″ | |
| HEX 22 | 1200 | 3′ 11″ | 27 | 1 1/16″ | |
| HEX 22 | 1600 | 5′ 3″ | 27 | 1 1/16″ | |
| HEX 22 | 1800 | 5′ 11″ | 27 | 1 1/16″ | |
| HEX 22 | 2000 | 6′ 7″ | 27 | 1 1/16″ | |
| HEX 22 | 2400 | 7′ 10″ | 27 | 1 1/16″ | |
| HEX 22 | 3000 | 9′ 10″ | 27 | 1 1/16″ | |
| HEX 22 | 3300 | 10′ 10″ | 27 | 1 1/16″ | |
| Reaming bit | Carbide dimension | Dimensions D | Flushing hole | |||||
| Gauge | Front | |||||||
| [No.] | [mm] | [No.] | [mm] | [mm] | [in] | Front | Side | |
 |
8 | 9.5 | 4 | 8 | 76 | 3″ | / | / |
| 8 | 12.7 | 4 | 9.5 | 89 | 3 1/2″ | / | / | |
| 8 | 12.7 | 4 | 12.7 | 102 | 4″ | / | / | |
| 8 | 14 | 4 | 14 | 115 | 4 1/2″ | / | / | |
| 8 | 14 | 8 | 12.7 | 127 | 5″ | / | / | |
| Pilot adapter | Thread | L | D | Flushing hole | |||
| [mm] | [in] | [mm] | [in] | Front | Side | ||
 |
R 32 | 255 | 10 1/32″ 10 1/32″ 10 13/32″ | 40 | 1 9/16″ | 1 | 1 |
| R 35 | 255 | 40 | 1 9/16″ | 1 | 1 | ||
| T 38 | 265 | 40 | 1 9/16″ | 1 | 1 | ||
 |
R 32 / R 32 | 242 | 9 1/2″ | / | / | / | / |
| R 35 / R 35 | 242 | 9 1/2″ | / | / | / | / | |
| T 38 / R 32 | 260 | 10 7/32″ | / | / | / | / | |
| Pilot adapter | Thread | Carbide dimension | L | D | Flushing hole | ||||||
| Gauge | Front | ||||||||||
| [No.] | [mm] | [No.] | [mm] | [mm] | [in] | [mm] | [in] | Front | Side | ||
 |
R 32 | 4 | 9.5 | 2 | 8 | 240 | 9 7/16″ | 41 | 1 5/8″ | 1 | 1 |
| T 38 | 4 | 9.5 | 2 | 8 | 240 | 9 7/16″ | 41 | 1 5/8″ | 1 | 1 | |
| Reaming bits | Thread | Carbide dimension | D | d | Flushing hole | ||||||
| Gauge | Front | ||||||||||
| [No.] | [mm] | [No.] | [mm] | [mm] | [in] | [mm] | [in] | Front | Side | ||
 |
R 32 | 8 | 14 | 4 / 3 | 11 / 11 | 102 | 4″ | 41 | 1 5/8″ | 2 | 0 |
| T 38 | 8 | 14 | 7 / 4 / 2 | 11 /11 / 9.5 | 102 | 4″ | 51 | 2″ | 2 | 0 | |
| T 38 | 8 | 14 | 4/6 | 12.7/12.7 | 127 | 5″ | 67 | 2 5/8″ | 2 | 0 | |
| T 45 | 8 | 14 | 4/6 | 12.7/12.7 | 127 | 5″ | 64 | 2 1/2″ | 2 | 0 | |
| T 45 | 8 | 14 | 4/6 | 12.7/12.7 | 127 | 5″ | 73 | 2 7/8″ | 2 | 0 | |
| T 38 | 8 | 16 | 6/6 | 14/14 | 152 | 6″ | 102 | 4″ | 2 | 0 | |
| T 45 | 8 | 16 | 2/4/6 | 14/16/12.7 | 152 | 6″ | 64 | 2 1/2″ | 2 | 0 | |
| ST 58 | 8 | 16 | 4/6 | 14 / 14 | 152 | 6″ | 89 | 3 1/2″ | 2 | 0 | |
| R 38 | 10 | 16 | 6/3 | 14 / 14 | 178 | 7″ | 76 | 3″ | 2 | 0 | |
| T 38 | 10 | 16 | 8/16 | 16 / 14 | 203 | 8″ | 152 | 6″ | 2 | 0 | |
| ST 58 | 12 | 14 | 20/4 | 14 / 14 | 225 | 8 7/8″ | 127 | 5″ | 4 | 0 | |
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R 32 | 8 | 11 | 7 | 9.5 | 76 | 3″ | 29 | 1 5/32″ | 3 | 1 |
| R 32 | 8 | 12.7 | 6/1 | 11/9.5 | 89 | 3 1/2″ | 29 | 1 5/32″ | 3 | 2 | |
| R 32 | 8 | 12.7 | 6/1 | 12.7 / 9.5 | 102 | 4″ | 29 | 1 5/32″ | 3 | 2 | |
| R 35 | 8 | 12.7 | 6/1 | 12.7 / 9.5 | 102 | 4″ | 29 | 1 5/32″ | 3 | 2 | |
| T 38 | 8 | 12.7 | 6/1 | 12.7 / 9.5 | 102 | 4″ | 29 | 1 5/32″ | 3 | 2 | |
| R 32 | 8 | 14 | 10/1 | 12.7 / 11 | 115 | 4 1/2″ | 29 | 1 5/32″ | 4 | 1 | |
| T 38 | 8 | 14 | 10/1 | 12.7 / 11 | 115 | 4 1/2″ | 29 | 1 5/32″ | 4 | 1 | |
| R 32 | 8 | 14 | 10/1 | 12.7 / 11 | 127 | 5″ | 29 | 1 5/32″ | 4 | 1 | |
| T 38 | 8 | 14 | 10/1 | 12.7 / 11 | 127 | 5″ | 29 | 1 5/32″ | 4 | 1 | |
