1.We are a professional manufacture of PDC bit2.PDC bits are used for water well drilling, geotechnical and environmental drilling, mineral exploration, geothermal wells, geothermal drilling, construction and utility work 3.Standard size:56,65,75,94,113,133,153mm(2inch to 6inch)4.Wings/Blade:3,45.Thread :as requested6.High quality PDC cutter, more hardness PDC cutter7.High drilling efficiency, long bit life