8 1/2" 215.9mm used /second-hand high quality carbide tricone bits for sale

   Siruite Company Info:             Urumqi siruite rock drilling tools company is located in Urumqi city,and branch-office in Hejian city of Hebei province. We owes the most convenient transportation no matter by sea,by air or by land. it's specialized in producing and supplying various of TCI/MT Tricone Rock Bits, Diamond PDC Bits with general,good,high quality three classes.          Tricone bits ,hole openers can be used to explore /drill gas/oil/geothermal/water wells.  3 7/8”~26” are available for Tricone bits. 4 1/2"~17 1/2" are available for Diamond PDC bits.        AVAILABLE SIZES

76mm, 98mm(3 7/8"), 101.6mm, 114mm, 118mm, 120mm, 127mm(5") ,130.1mm(5 1/8"), 133.3mm(5 1/4"), 139.7mm(5 1/2"), 142.8mm(5 5/8"), 149.2mm(5 7/8") ,152.4mm(6"), 155.5mm(6 1/8"), 158.7mm(6 1/4"), 161.9mm(6 3/8"), 165.1mm(6 1/2") ,190.5mm(7 1/2"), 193.6mm(7 5/8"), 200.0mm(7 7/8") ,212.7mm(8 3/8"), 215.9mm(8 1/2"), 222.2mm8 3/4") ,241.3(9 1/2"), 244.4(9 5/8"), 250.8(9 7/8") ,269.8(10 5/8"), 295.3(11 5/8") ,311.1(12 1/4"), 346.0 (13 5/8"), 349.2(13 3/4") ,374.6(14 3/4") ,381(15"), 393.7(15 1/2"), 406.4(16") ,444.5(17 1/2"), 508(20"), 558(22"), 609.6(24") ,660.4(26")

                                        -----After -service quality guarantee-----   1.every bit has four years quality guarantee. 2.bits continous working time is about 150~200hours,if bearing is broken   or teeth dropped in this period of time,we can send you new one for free. 3.To customer placing big order,we can supply technical support.                                     -----Siruite Bits Foreign Trade Details-----    • Payment Terms          We accept T/T (30% in advance for big order, full T/T for small order), Wester Union, L/C at sight .    • Delivery Tim       3 days after receipt payment for small order, 15~30 days for big order.    • Shipping Ways       Below 100kg,  Suggest by DHL/FeDex/UPS/TNT internation express, between 100~500kg ,suggest     by air, above 500kg, suggest by sea.        Notice: If you have special need on the bits,we will customize          according to your demands !