Rock Drilling Tools Spherical R28 41mm Series Button Bits for Hydraulic Machine

Button bit threaded drill bits are widely used in mining, drilling, quarrying, engineering, construction, water well drilling, and oil exploration industries. These R28 thread button bits are manufactured using high-quality alloy steel bars and tungsten carbides with superior wear resistance and impact toughness. Through heat treatment, they can withstand the toughest rock drilling demands while efficiently transmitting intensive impact energy into the rock.

R28 - Refers to the thread type or shank size, a common thread standard for top hammer drill bits compatible with certain drill rigs.
41mm - Indicates the drill bit diameter (41mm or ~1.61 inches), which determines the hole size.

• Button inserts: Made of tungsten carbide for superior wear resistance
• Used in: Mining, quarrying, construction, and tunneling applications
• Compatibility: Works with DTH hammers or top hammer drills depending on design
• Applications: Drilling blast holes, anchor holes, or exploration drilling in hard rock formations

Common brands include Sandvik, Atlas Copco, Mincon, Epiroc, and Robit. R28 is often associated with top hammer drilling, while DTH bits may have different thread types (e.g., "API" or "SD" series). For specific technical details like recommended rotation speed, flushing pressure, or rock hardness suitability, please consult the manufacturer's specifications.