Produce high-quality products and provide high-quality services
Zhuzhou Changhong Mining Machinery Offer Best In Class Drilling Machines
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| parameter |
| Diameter | Button Number | Taper degree | Length | Weight | Package |
| mm | (pieces) | (°) | (mm) | (kg) | box |
| 28 | 4 | 7°/11°/12° | 65-69 | 0.2 | 50pcs/box |
| 30 | 4~6 | 7°/11°/12° | 65-69 | 0.20~0.30 | 50pcs/box |
| 32 | 4~7 | 7°/11°/12° | 65-69 | 0.20~0.30 | 50pcs/box |
| 34 | 4~8 | 7°/11°/12° | 65-69 | 0.22~0.30 | 50pcs/box |
| 35 | 4~8 | 7°/11°/12° | 65-69 | 0.22~0.40 | 50pcs/box |
| 36 | 4~8 | 7°/11°/12° | 65-69 | 0.30~0.40 | 50pcs/box |
| 38 | 4~8 | 7°/11°/12° | 65-69 | 0.30~0.40 | 50pcs/box |
| 40 | 4~8 | 7°/11°/12° | 65-69 | 0.30~0.42 | 50pcs/box |
| 41 | 4~8 | 7°/11°/12° | 65-69 | 0.30~0.42 | 50pcs/box |
| 42 | 4~8 | 7°/11°/12° | 65-69 | 0.30~0.46 | 50pcs/box |
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| RELATED PRODUCT |
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OUR SERVICE
☑ We will provide more precisely and efficiently manufacture and serve according to clients' drawings.
☑ We have professional QC team to ensure your product more better.
☑ Check the raw material before starting production.
☑ Have the random inspection during the processing.
☑ Make the 100% inspection before the shipments.
WHY ARE YOU CHOOSE US
☑ We have been engaged in tapered cross bit for more than 20 years.
☑ apered cross with conical pipe drilling perfect;
☑ Reliable work, high cost performance;
☑ Accurate the dimension of taper degree perfectly matches the rods;
☑ High grade tungsten carbide inserts;
☑ The drill bit is made of high quality steel and uses the most advanced CNC machinery and heat treatment process.
about uS
FAQ
To work with us is your best choice !
