8 1/2" IADC Code 637 G Tricone Bit for Very Hard Rocks Drilling

• Type：Core Drill
• Usage：Metal Drilling, Masonry Drilling, Well Drilling, Wood Drilling
• Certification：API
• Name：Tricone Drill Bit
• China：China Tricone Drill Bit
• Supplier：Tricone Drill Bit Supplier

=== Base Info ===

• Model NO.：ROS 8 1,2"
• Manufacturer：China Tricone Drill Bit Manufacturer
• Type No：China Tricone Rotary Drill Bits
• Bit：China Bit
• Rock Bit：China Rock Bit
• Item：Roller Cone Bit
• Item No：TCI Tricone Bit
• Use：Africa Tricone Drill Bit
• Transport Package：Wooden Box
• Specification：8 1,2"
• Trademark：ROSCHEN
• Origin：China
• HS Code：843143210
• Production Capacity：2500

=== Description ===
REG.PIN APIinmm13 3/495.32 3/823 7/898.42 3/834 1/8104.82 3/844 1/41082 3/854 1/2114.32 3/864 5/8117.52 7/874 3/4120.72 7/884 7/8123.82 7/895 1/2139.73 1/2105 5/8142.93 1/2115 2/3143.93 1/2124 3/4146.13 1/2135 7/8149.23 1/2146152.43 1/2156 1/8155.63 1/2166 1/4158.83 1/2176 1/2165.13 1/2186 5/8168.33 1/2196 3/4171.53 1/2207 1/2190.54 1/2217 5/8193.74 1/2227 7/82004 1/2238 3/8212.74 1/2248 1/2215.94 1/2258 5/8219.14 1/2268 3/4222.34 1/2279 1/2241.36 5/8289 5/8244.56 5/8299 7/8250.86 5/83010 1/2266.76 5/83110 5/8269.96 5/83211279.46 5/83311 5/8295.36 5/83412304.86 5/83512 1/4311.26 5/83612  5/16312.76 5/83713 3/8314.36 5/83812  7/16315.96 5/83912 5/8320.76 5/84013 1/8333.46 5/84113 1/2342.96 5/84213 5/8346.16 5/84313 3/4349.36 5/84414 1/2368.37 5/84514 3/4374.77 5/84615 1/2393.77 5/84716406.47 5/84817 1/2444.57 5/84918 7/8479.47 5/850205087 5/85122558.87 5/85224609.67 5/85326660.47 5/85428711.27 5/855307627 5/8

1. Cutting StructureThe durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit.

2. Gauge StructureMultiple gauge protection with gauge trimmers on the heel of cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.

3. Bearing StructureHigh precision bearing with two thrust faces. Ball lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved.

4. Seal and LubricationPremium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.

5. Product ApplicationIt can receive high WOB in the conventional drilling. It is suitable for various formations by matching cutting structure with different tooth shape, tooth density and tooth exposure height.


FAQ

Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.                   

Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.