Factory made hot-sale Tapered Rock Drilling Auger Bit - Hollow drill steel – Kat

Short Description:

A type of steel specially used in drill rod manufacture, high intension and toughness. Hexagon and round (1)Material: Sanbar 20 or C253;Z708;Sanbar 64;Sanbar 23. (2)Size: Hex.22mm, 25mm, 28mm,35mm, R39,R46,R52 (3)Length: any length according to your require. (4)Package: Wrapped with steel belt and then into bundles. (5)Productivity: 20000MT/ month