Description
This reamer is designed specifically for backreaming through cobble, hardpan, sandstone, shale, limestone and any borable rock or hard soils. The conical design enhances cutting by exposing as much carbide to the surface as possible. Four blades with a ring surrounding them stabilize the backreamer in the hole significantly reducing vibration and speeding the cutting process. Finished hole size will be appx 10.5 inches
