Replaceable Single Roller Cone Cutters for Piling Bucket Drills

Replaceable Single Roller Cone Cutters for Piling Bucket Drills Foudation rock piling application always use thirds(1/3) of tri-cone bit, the single roller cone cutters is welded at rotary drilling bucket directly, after cutter wear out, drillers cut the used ones down and re-weld new single roller cone cutter, cutting and rewelding is a slow procedure. After developed the square arm single roller cone cutters, replaceable single roller cones was developed at the same time