Roller-Ball-Roller-Thrust Botton/Sealed Bearing,TCI(Tungsten Carbide Insert) Spherical inserts on gage and oval insert on inner rows. Designed for effective drilling in hard and abrasive formations with high compressive strength such as high limestone,hard dolomite,hard sandstone,granite,silicified limestone,hematite,magnetite,etc.
Name:Q7 Calacatta VanGogh Size:3200 1600mm 3000 1400mm Thickness:20/30mm Finish:Polished/Honed
