Casing shoes have cutting elements on the face of the crown and outside diameter, while the inside diameter is smooth. The inner diameter of the casing shoe is sufficiently large to permit free passage of drill bits and core barrels in corresponding sizes.

Roschen announces the complete series of Roschen™ Diamond Drilling Bits is now available. All drillers from the newly promoted to the seasoned veteran find the color-coded Roschen diamond drilling bits much more effective in obtaining higher productivity.

Roschen's line of surface set core bits meets the needs of drilling companies operating in differing ground conditions. With a choice of diamond grades ranging from coarse to fine, and a variety of profiles, choosing the appropriate surface set core bit is now easier than ever.