| Customization: | Available |
|---|---|
| Certification: | ISO 9001:2000 |
| Standard: | GB |
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Product Description
1.The longer life of the drill :the alloy material,with longer using life which better than the similar products
2.High drilling efficiency:the drill buttons is wear-resistant,so that the drill can always keep sharp ,thus greatly improving the speed of the drilling
3.The drilling speed is stable:the bit is scraped and cut to break the rock
4.Good performance:Has strong wear resistance,good diameter protection and can make the cutting teeth be used efficiently
5.The use of a wide range:the practice prives that the bit is suitable for carbonate rock,limestone,chalk,clay rock,siltstone,sandstone and other soft and hard (9-grade drillability of rock,hard rock drilling),compared with normal bit,especially drilling in 6-8 grade rock the effect is particularly signiicant.
| Head shape | Head diameter(mm) | shank length | spline | port holes | button type | gauge buttons | front buttons | weight(kg) |
| convex face | 140 | 260 | 8 | 2 | spherical+ballistic | 7*18 | 4*15+3*14 | 15.8 |
| flat face | 146 | 260 | 8 | 2 | spherical+ballistic | 8*18 | 8*14 | 16.5 |
| flat face | 152 | 260 | 8 | 2 | spherical+ballistic | 8*18 | 8*14 | 17 |
| concave face | 165 | 260 | 8 | 2 | spherical | 8*18 | 4*16+4*14 | 18.9 |
| concave face | 178 | 260 | 8 | 2 | spherical | 8*18 | 6*16+5*14 | 20.4 |
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