Customization: | Available |
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After-sales Service: | Yes |
Warranty: | Yes |
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Bit diameter |
Flushing holes No.*Button Dia. mm |
No.*Button Dia. mm |
Weight (kg) |
||
mm | inch | Gauge Buttons | Front Buttons | ||
254 |
10'' | 2*Ф30 | 12*Ф19 | 8*Ф18+18*Ф16 | 85 |
280 |
11'' | 3*Ф26 | 12*Ф19 | 9*Ф18+20*Ф16 | 91 |
295 |
11 5/8" | 3*Ф26 | 15*Ф19 | 27*Ф18+9*Ф16 | 95 |
305 |
12" | 3*Ф26 | 15*Ф19 | 27*Ф18+9*Ф16 | 97 |
311 |
12 1/4" | 3*Ф26 | 15*Ф19 | 27*Ф18+9*Ф16 | 98 |
315 |
12 3/8'' | 3*Ф26 | 15*Ф19 | 27*Ф18+9*Ф16 | 101 |
330 |
13'' | 3*Ф26 | 15*Ф19 | 27*Ф18+9*Ф16 | 114 |
Face shape selection
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. 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. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
5. 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 the load and wear on the gauge buttons, but poor hole deviation control.
About us
Sollroc is specialized in designing, manufacturing and developing equipments and accessories for standard models as well as the special needs of clients and provides them with the best suggestions and solutions. We practice strict and stringent quality control during manufacturing and adhered to recognized and approved quality control systems. Each of our products follows the quality requirements and procedures to ensure finished products are durable and superior up to standard.
Our variety of Down the Hole drill bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life. We offer a comprehensive range of standard and made to order drill bits on an extensive selection of shanks with a wide variety of head designs to suit every project.
Sollroc DTH bits are interchangeable with these famous bits with CIR, Mission, DHD, SD, QL, etc. series shank.
Delivery Time
Generally need 15-25 days
Transport Way
By air, By Sea or By Express
Detail photos