6 Inch Hydraulic Pdc Drag Bit Drilling Carbon Steel With Long Bit Life PDC drill bit is mainly used for drilling soft-medium formation, such as mud stone, limestone, shale, sandstone and granite etc. pdc drill ... Read More
PDC Drag Drill Bits 3 Wings For Soft Formations A drag bit is a drill bit usually designed for use in soft formations such as sand, clay, or some soft rock. However, they will not work well in coarse gravel or ... Read More
Drag bit are manufactured from forged high-quality alloy steel and hard alloy, plus state of art welding technology and multiple precision heat treatment to provide the highest penetration rate and longest ... Read More