A button bit body is the core structural component of a percussive or rotary-percussive drill bit used in rock drilling, mining, tunneling, and construction. This component is machined to accommodate tungsten carbide buttons (cutting inserts) and designed with a flushing hole to facilitate air or water flow during drilling.

• Design:
  • Button Pockets -Precision-drilled cavities to receive tungsten carbide buttons (spherical, ballistic, or semi-ballistic).Button layout optimized for cutting pattern, wear balance, and rock fracture efficiency.
  • Central Flushing Hole (25 mm) -Allows air or water to pass through and flush cuttings from the hole.May be connected to side flushing holes or slots depending on the bit type.
  • Tapered or Threaded Connection -Depending on the drill system, the rear end is designed with a taper (e.g., 7, 11) or thread (e.g., T38, R32) for attachment to drill rods.
  • Shank/Body Transition (52 mm) -Designed to minimize drag and reduce the risk of bit jamming in broken ground.
• Applications:
  • Mining and Quarrying -Drilling blast holes in hard rock, especially in underground mines or open pits.
  • Construction and Civil Engineering -Rock drilling for foundation support, rock bolts, and micro-piles.
  • Tunneling and Trenching -Mounted on percussive drills for horizontal or angled boring.
  • Geotechnical Investigations -Suitable for exploratory drilling in hard formations.
• Materials:Bit body is high-strength alloy steel for high impact resistance and fatigue strength. Carbide button are tungsten carbide for extreme hardness and wear resistance. The steel body is typically through-hardened and tempered to achieve optimal balance of toughness and strength.

See the rest of our rock drill bits and it works with our ext rods. The rock drill bit buyer’s guide covers how to match one to the job. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.