... API & ISO9001 5.delivery on time Type6"(152mm), 6 1/2"(165mm), 8 1/2"(215.9mm), ... ,527,537,547 (HJ or HA)KN/mm 0.5~1.20R/min 100~50Applicable Formations ... ,reamer bitadvantagemost favorable price and best qualitybearing type:sealed bearing and non-sealed bearingHJ(metal sealed ... C, Western unionDelivery termsBy sea or by airDelivery timeWithin 3 to 7 daysMarketCanada, USA, Middle east ,Africa, ...