SOD-108 Unrecycleable (permanent) Symmetix Casing System

Permanent ( Unrecycleable , one-time usage ) SOD Symmetric Overburden Drilling System , which is designed to drill and case a hole simultaneously through unstable ground conditions.

Ring Bit and the Casing Shoe are combined to form a reaming assembly, which can rotate freely with each other, but cannot be separated. The reaming assembly is welded on the Casing Tube.

The driver rock drill bits incorporated with one-time usable ring or reusable ring makes a full face head design which significantly improves the penetration rate and hole straightness of drilling.

The internal flushing grooves together with the built-in casing shoes gives a good seal to the button of the drilling hole, minimizing the disruption of the drill hole's surrounding.

1.Permanent type SOD casing drill bit with no connection between Ring Bit and Casing Shoes

2.Permanent type SOD casing drill bit with soft pin connection between Ring Bit and Casing Shoes

3.Permanent type SOD casing drill bit with no seperation between Ring Bit and Casing Shoes