Description:There are 4 kinds of subs,Website:http://www.fypedrilling.com, Cable Head, Top Subs, Tandems, Bottom Subs and Crossovers under normal pressure and Ultra-HP. Technial Parameter:NoSub TypeModelOD(mm)OAL(mm)ThreadO-ring size(mm)1TandemBox6868165M59×2,M53×252.5×3.55,46.2×3.5527374188M65×2,Tr65×457.9×3.558383188Tr70×4,Tr65×460×5.3,64.9×3.55386861882 13/16-ACME,Tr65×457.9×3.55,64.9×3.55489891883 1 /16-ACME,M80×3,Tr80×4,Tr78×468.6×5.7,57.9×3.555102102127Tr90×4,Tr65×478.6×5.7,57.9×3.556114114127Tr100×4,Tr65×4,3 15/16-ACME90×5.3,57.9×3.557127127127Tr115×4,Tr65×4103.6×5.7,57.9×3.558Double Pin5154150M43×236.9×3.5596061150M53×246.2×3.55106868140M59×2,M53×252.5×3.55,46.2×3.55117374167M65×2,Tr65×457.9×3.558383188Tr70×4,Tr65×460×5.3,64.9×3.551286861772 13/16-ACME,Tr65×457.9×3.55,64. 9×3.551389891773 1 /16-ACME,M80×3,Tr80×4,Tr78×4,Tr65×468.6×5.7,57.9×3.5514102102178Tr90×4,Tr65×478.6×5.7,57.9×3.5515114114178Tr100×4,Tr65×4,3 15/16-ACME90×5.3,57.9×3.5516127127178Tr115×4,Tr65×4103.6×5.7,57.9×3.55
