Barrel type hole opener | customized to overseas HDD project
Barrel type hole opener, ideal for reaming in gravel & cobble layer, these were customized to overseas HDD project. Connecton Type: 6-5/8FH Cone/cutter Size: 17-1/2"MT Sealing Type: Metal seal Nozzle Size: 14mm
It is designed as a barrel-type roller hole opener; the barrel’s large contact area with the borehole wall enables it to withstand the collapse of cobbles, whilst its flow-channel structure facilitates the removal of cuttings. Several water jets are also incorporated into the flow channel, each spraying out drilling fluid to flush away the cuttings.
English
العربية
