1.17 1/2'' 444.5mm TCI three roller bit 2 ... speed (r/min)140-60principal character of the cutting structureLarge diameter deflection top spoon shaped alloy tooth ... of extremely soft formation, such as shale, clay, sandstone, the conglomerate, etc.Payment termsL/C, T/T, Western unionMOQ1 ... needs are our first priority and customer satisfaction is the bottom line by which we measure our success.We ...