1,tci tricone bit.tci rock bit 2,certified by API 3,best price 4,wide size code 5,delivery on time

Size and types availableSize: Common sizes, 6.6-1/2, 7-7/8, 9-7/8, 10-5/8, 12-1/4Various sizes also can be manufactured by the clients order.Types: IADC Code, 127, 137,216,337,437,517,537,547,617,637,737 etc.

1,tci tricone bit.tci rock bit

2,certified by API

3,best price

4,wide size code

5,delivery on time

contact:Amily Su

tel:+86-0317-3228656

mobile:+86-15028736941