牙轮钻头尺寸: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代码型号:HJ114-115.116.117.214.217.127.126.334.346.517.537.547.617.637.417.437等
各种牙轮钻头,矿山钻头,打桩专用牙轮掌片,牙掌,组合式钻头等,组合式牙轮钻头,
各种进口钻头,进口牙轮钻头,进口复合片钻头,扩孔牙轮钻头提供,导向扩孔牙轮钻头等;
76mm三牙轮钻头,93mm三牙轮钻头,98mm三牙轮钻头,112mm三牙轮钻头,114mm三牙轮钻头,121mm三牙轮钻头,133mm三牙轮钻头,146mm三牙轮钻头,149mm三牙轮钻头,152mm三牙轮钻头,165mm三牙轮钻头,171mm三牙轮钻头,190mm三牙轮钻头,215mm三牙轮钻头,241mm三牙轮钻头,244mm三牙轮钻头,250mm三牙轮钻头,269mm三牙轮钻头,295mm三牙轮钻头,311mm三牙轮钻头,346mm三牙轮钻头,374mm三牙轮钻头,445mm三牙轮钻头,660.4mm