China 8 3 4"Single Cone Drill Bits for Oilfield Well Drilling

Description:

1.Single roller cones is developed from segment of tricone bit, the bearing is sealed by O-ring. The Tungsten Carbide Insert roller cones is suitable for drilling hard rocks.
2. The Grease Compensating Stystem of tricone bit is not requried when HDD application or piling core barrels, so this single roller cones simplify and delete the Grease Compensating System to reach the aim of lower cost.
3. This single roller cones could be welded, and it also could be fixed on replaceable hole opener or piling core barrels .

Size:7 1/2,8 1/2,9 7/8,12 1/4
IADC code:117,127,126,217,471,437,517,537,617,627,637,737
Bearing Type:metal sealed bearing,Rubber sealed bearing

Hot sizes:

6" (152.4mm) 8 1/2" (215.9mm)8 3/4(222.2mm) 12 1/4" (311.1mm)17 1/2" (445mm)

Cutting Structure

Part of Tricone bits, both Steel Tooth Bits and TCI Bits are available .

Product Application

Tricone cone cutters(legs) are mainly used in building big diameter piling bits or hole opener,

core barrel according to different formations.

Main Type Available

Most of regular sizes and IADC Codes, IADC127,217, 517,537,617,

Terms & Conditions of Ordering:
1 .Payment Terms:
T/T (Telegraphic Transfer) or Western Union
2. Delivery Term:
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. Transportation:
Sample order: we suggest Courier express or by air
Bulk order: we suggest by air or by sea.
4. Quality & Service:
A. There will be strict inspection and testing for every order before shipping out.
B Our sales team and Technical Support will response for your question within 24 hours (Holidays Excluded) through
C. Free replacement will provide once the failure confirmed caused or our product quality; Not satisfied with a refund.