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8 1/2" TCI Tricone Bits / Water Well Drill Bit/ Tricone Drill Bit1
Diamond ToolsTricone Bit for Well DrillingTricorn Hat
HEFEI ROSCHEN TOOL CO., LTD.
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Product Description 8 1/2" TCI Tricone Bits / Water Well Drill Bit/ Tricone Drill Bit8 1/2" TCI tricone bits / water well drill bit/ Smith Roller Tricone bits 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.Product Description IADC codeIADC 637Bit size12 1/4" (311.1mm)Tooth typeWide teeth, chisel insertTricone bit dimension350mm*390mm*520mmBit weight105kgMaterialTungsten carbide insert, inlaid friction-reducing alloyRotation speed70-40 r/minWOB0.7~1.2 KN/mmLubrication and sealAdopt advanced greasePressure control systemThe pressure compensatorThrust facesHardfaced with wear resistant alloyNozzlesThree nozzles, Center nozzle can be customizedMultiple gauge protectionYesGauge protectionOn the Shirttail: More carbide inserts increase gauge holding capability and bearing life.BearingElastomer sealed (rubber sealed) journal bearingMetal-face sealed journal bearingQuality management systemISO 9001-2008 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 5/8Product PicturesProductionFAQQ: 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.For more information please contact: ROSCHEN INC.ROSCHEN GROUP LIMITEDROSCHEN HOLDINGS LIMITED Website: http://roschen.en.made-in-china.com ; http://roschen.en.made-in-china.com http://roschen.en.made-in-china.com
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