... shape of products.3 the drill bit, Pdc applicable formation1) by a complex geological exploration of the bit.Mainly ... the geological survey for the exploration of the compound, used in soft to drill in hard rock, my factory can ... 215.9,244,311,445 Typeall kinds and size PDC bits Applicable water well, oil field, construction, geothermal, directional ... Delivery Time within 7-15 work days PDC drill bits