For a very difficult overburden, choose one of the high performance matrices that are offered with the Gator casing shoes instead. Those different matrices particularly allow drilling in a rocky ground or allow a bit matrix casing shoe to drill a very hard ground on a certain depth. Those products are offered with a diamond impregnation height of 8mm.
Fordia has the most common couplings in stock and can provide you with different special couplings upon request.
For a solution that offers an excellent quality/price ratio, select the Standard Gator casing shoes.
Fordia manufactures three standard inner and outer tube sizes (BWL, NWL and HWL) and offers other custom sizes.
These tools are offered in two types: chevron type or step type.