牙輪鉆頭尺寸:3 7/8(98mm),4 5/8(118mm),5 7/8(149mm),6(152mm),6 1/2(165mm),7 1/2(190mm),7 7/8(200mm),8 1/2(216mm),9 1/2(241mm),9 7/8(250mm),10 5/8(269mm),11 5/8(295mm),12 1/4(311mm),13 5/8(346mm),15 1/2(393mm),16(406mm),17 1/2(445mm),26(660mm)
IADC代碼型號:HJ114-115.116.117.214.217.127.126.334.346.517.537.547.617.637.417.437等
各種牙輪鉆頭,礦山鉆頭,打樁專用牙輪掌片,牙掌,組合式鉆頭等,組合式牙輪鉆頭,
各種進口鉆頭,進口牙輪鉆頭,進口復(fù)合片鉆頭,擴孔牙輪鉆頭提供,導(dǎo)向擴孔牙輪鉆頭等;