China TCI Rock Tricone Bits 8 1 2 Inch IADC 537 for Water Well Hard Rock Drilling

Tricone Roller bit is the most widely used drilling bit. When the roller cone bit is working, the cutting teeth alternately contact the bottom of the well, the torque of breaking the rock is small, the contact area between the cutting tooth and the bottom of the well is small, the specific pressure is higher, and it is easy to eat into the formation; the total working length of the working blade is large, thus relatively reducing the wear. Roller bit can adapt to a variety of formations from soft to hard.
According to the number of cones, it can be divided into single-cone bit, tri-cone bit, and assembled multi-cone bit. According to the cutting material can be divided into steel teeth (milled teeth) and insert tooth bit.
Product specifications:
ModelMilled tooth bits tricone for water well , TCI bits tricone for water wellIADC Code116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535Bearing TypeH---Friction bearing; G---Roller bearing; F--- Floating BearingSealing TypeHJ(metal sealed journal bearing)HA (rubber sealed journal bearing) air cooled bearing typeSizeFrom 2 7/8" to 26" larger sizes for hole opener bit ,reamer bitMaterialalloy steel, tungsten carbide insertExtra Feature1) Y-Conical teeth 2) X-chisel teeth 3) K- wide teeth 4) G- Gague protectionApplicable FormationVery soft, soft , medium soft ,hard, medium hard, very hard formationApplicationPetroleum & gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work
NO.TRICONE ROCK BIT SIZEAPI THREAD REG.PIN inmm13 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
Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Production time:
Generally need 15-25 days
Transportation:
By air, By Express or By sea according to your requests.
FAQ
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
: 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.


For more information please contact:



ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED







Website: http://roschen.en.made-in-china.com
; http://roschen.en.made-in-china.com
http://roschen.en.made-in-china.com