Retrievable Ring Bit Casing System

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Retrievable ring bit casing bit by down the hole hammer Product details: Down the hole(DTH) tools manufacturer KINGDRILLING produce professionally retrievable Ring Bit Casing System by DTH hammer which is used in drilling and casing a hole through unstable ground conditions. Product feature: The system consists of a driver bit,Website:http://www.mingdthbit.com, a ring, and independent casing shoe. When the bit rotated anticlockwise, driver bit can be locked to the ring. After drilling, the ring will be separated from the driver bit and kept in the bottom of the hole. Model External Dia.(mm) Casing Dia.(OD*ID) Spline MK-MRING90 125 114*102 MACH33, DHD3.5 MK-MRING115 155 139*127 DHD340, SD4, QL4 MK-MRING140 188 168*153 DHD350, SD5, QL5 MK-MRING165 215 194*181 DHD360, SD6, QL6 MK-MRING190 238 219*206 DHD360, SD6, QL6 MK-MRING215 276 254*240 DHD380, SD8, QL8 MK-MRING235 293 273*254 DHD380, SD8, QL8 MK-MRING240 293 273*260 DHD380, SD8, QL8 MK-MRING280 345 323*303 SD10 MK-MRING315 375 355*335 SD10 MK-MRING365 432 406*387 N120, N125, SD12 MK-MRING460 530 508*483 N125, N180 MK-MRING510 580 559*533 N180 MK-MRING560 635 610*584 N180 MK-MRING610 695 660*632 N240 MK-MRING660 735 711*685 N240 MK-MRING710 785 762*736 N240 MK-MRING745 838 813*780 N240 MK-MRING810 886 864*838 N240, N240S MK-MRING860 935 914*884 N240S MK-MRING910 980 965*935 N240S MK-MRING960 1038 1016*986 N240S, M330 MK-MRING1010 1090 1067*1041 M330 How to order: Casing Tube OD & ID + Ring Bit Diameter + Hammer Shank + Maximal Normal Bit Diameter + Casings and Casing Shoes Installation Method (if by threads, threads standard must be offered) What we can do for you: 1. High quality: We are the partners with a lot of big factories in China. We can provide the best quality products to you.  2. Competitive price: Competitive price because of direct factory price.  3. Fast delivery time:usually it takes 20 days for production.only 3 or 5 days if we have stock of your request size. 4. Best quality control:We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out. 5. Problems solve ability:This ability comes from rich experiences of drill bits industry and reliable sales.. 6. OEM,ODM service:your own request about product will be served well. 7. Best after service:We will go to your place to check and solve the problems if you need.    

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WUHAN KINGDRILLING DIAMOND CO., LTD.

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