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![Rotary Drilling Tools hard rock drilling bits 8 1/2" Roller Bits For Core Barrel](https://img2.tradewheel.com/uploads/images/products/8/3/rotary-drilling-tools-hard-rock-drilling-bits-8-12quot-roller-bits-for-core-barrel1-0633350001607595528.jpg.webp "Rotary Drilling Tools hard rock drilling bits 8 1/2" Roller Bits For Core Barrel")
| Place of Origin | China | Brand Name | UNIMATE |
| Type | Core Drill Bit | Use | Well Drilling |
| Finish | Black Oxide, ZINC, Plain | Name | Roller Bit |
| Brand | UNIMATE | Body Material | 42CrMo |
| Weight | 17kg | Application | Used for rock bucket, core barrel for soil or rock pile drilling |
| Model | 955-2227AAT, 55-12K-2227, 855-AAT, 60-12K-2431, etc | Quality | High Guarantee |
| Feature | High Duarability, high work efficiency | Packing | Plastic Box |
| After-sales Service | Technical support |
1-How to purchase your products?
Send inquiry to us at the bottom of the package, we will reply to you soonest after we receive your inquiry.
Or contact us online, there is customer service on our website homepage.
2-Can you supply after-sales service?
Of course, after customers place an order, there will be a
sales manager who follows up the order to let the customer know
the progress of the order. After delivery, the sales manager
and the operation department will follow up on the transport
situation of the cargo together until the customers receive the
cargo. Customers could contact our sales managers online/by
email/by phone if there are any questions during installation
or construction, solutions will be given within 12
hours.
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