1. Work with core drills

2. All are laser welding, can be used without water cooling.

3. Different sizes available (diameter:32mm-350mm)

4. Standard length: 400mm, other length also available upon requirements

5. Standard connecting threads: 1 1/4"-7UNC, (M33 also available)

6. Different color available (minimum quantity 20 pcs to start)

2. Applications

The taper cross bits can be used under any rock drilling condition because of it's comprehensive adaptability.

Taper chisel bit is mainly used for hard rock, tapered cross bits and tapered button bit are mainly used for fissural

rock.The tapered cross bit is mainly used for diging into mine laneway and blasting holes in all drilling works

the taper drill rod. For different rock, we choose the different alloy to extend the working life of the taper cross bits.

1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: We suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: We suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
1. Our sales team will response for your question within 24 hours (Holidays Excluded)
2. Technical Support will be available in any time
3. Free replacement will provide once the failure confirmed caused by our product quality