Product description: 12 1/4" TCI bit Size: 12 1/4" IADC code:517 Sealed Type: Rubber sealed Thread:6 5/8"reg pin WOB(KN/mm):0.7~1.20 RPM(r/min):70~40 Make up toqure(KN.M):16.300~21.700 Weight(kgs/pc):105 Color:Blue, red, green or Customized Packing:Plywood box(free-fumigation) Industrial standard:SY/T5164 MOQ:1 PC Payment terms: T/T,Western Union,and L/C are acceptable Applications:Soft with low compressive strength and high drillability, such as shale, clay, sandstone and soft limestone, etc. Note:other size and IADC is available