Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
| Supply Ability | 5000pcs/month |
| Delivery Time | Shipped in 25 days after payment |
| Packaging Details | dth bits are packed by Woodens outer side, and Cartons inner side. |
| Model | SD12-381mm(15Inch) |
| Material | Alloy Steel |
| Processing type | Forging |
| Carbides Shape | Spherical, Ballistic, Parabolic and Conical |
| DTH BIT Colo | Gold,Other Color Like Red , Blue , Black , Yellow Are available |
| Bit Diameter | 305mm to 445mm |
| Matched Hammer | SD12 DTH Hammer |
| Appliance | Down The Hole Drilling,Mining,Quarry,Water Well Drilling |
| Brand Name | Teamwhole |
| Model Number | SD12-381mm(15Inch) |
| Certification | ISO9001:2008 |
| Place of Origin | Changsha,Hunan,China |
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Product Specification
| Supply Ability | 5000pcs/month | Delivery Time | Shipped in 25 days after payment |
| Packaging Details | dth bits are packed by Woodens outer side, and Cartons inner side. | Model | SD12-381mm(15Inch) |
| Material | Alloy Steel | Processing type | Forging |
| Carbides Shape | Spherical, Ballistic, Parabolic and Conical | DTH BIT Colo | Gold,Other Color Like Red , Blue , Black , Yellow Are available |
| Bit Diameter | 305mm to 445mm | Matched Hammer | SD12 DTH Hammer |
| Appliance | Down The Hole Drilling,Mining,Quarry,Water Well Drilling | Brand Name | Teamwhole |
| Model Number | SD12-381mm(15Inch) | Certification | ISO9001:2008 |
| Place of Origin | Changsha,Hunan,China | ||
| High Light | dth drill bits ，water well bits | ||
SD12-15"(381mm) For Water Well , Foundation ,Construction Drilling
1. SD12-381MM Bit specification
| Shank Type | Diameter | Bit Face | Gauge Buttons | Front Buttons | Side tips | Flushing Hole | Weight |
| SD12 | 381mm/15" | Concave | 18*19mm30 | 30*18mm | 21*16mm | 3 | 194 |
2. Other DTH bit size for SD12 DTH hammer
| Air | Gauge | Button dia. mm | Weight | |||||
| Diameter | holes | buttons | ||||||
| mm | inch | gauge | front | Kg | lb | |||
| SD 12 | ||||||||
| Concave face / Spherical button | ||||||||
| 302 | 11 | 3 | 12 | 18 | 18 | 171,0 | ||
| 311 | 12 | 3 | 12 | 18 | 18 | 172,0 | ||
| 330 | 13 | 3 | 12 | 18 | 18 | 181,0 | ||
| 357 | 14 | 3 | 18 | 18 | 18 | 191,0 | ||
| 381 | 15 | 3 | 18 | 18 | 18 | 200,0 | ||
| 444 | 17 | 3 | 18 | 18 | 18 | 225,0 | ||
| 483 | 19 | 3 | 18 | 18 | 18 | 280,0 | ||
| 508 | 20 | 3 | 18 | 18 | 18 | 306,0 | ||
3. Bit Face Shape Selection:
1) Drop Center Bit
----For high penetration rates in soft to medium hard and fissured rock formations.
2) Concave Face
----The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.
3) Convex Face
----For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.
4) Flat Face Bit
----This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
4. Carbide Button Shape Selection:
1. Semi-Ballistic Buttons
2. Ballistic Button
3. Spherical Button
4. Two-step Button
Company Details
Business Type:
Manufacturer
Year Established:
2002
Total Annual:
10Million-50Million
Employee Number:
201~300
Ecer Certification：
Active Member
Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin... Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin...
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