... performance 3. Reasonable price Casing Shoe /Casing BitWe Can Supply Impregnated Casing Shoe, Surface Set Diamond, PDC & Tungsten Carbide Casing Shoe Or Casing Bit. Casing and rod shoes are designed ... to drill in casings or rods, BW, NW, HW, PW etc. casing shoe are ... 46,56,66,76,86,101,116,131,146 Diamond Casing Shoe / Casing Bit