3-1/8" X 11-3/8" One Piece SDS-MAX Core Bit

The 3-1/8" x 11-3/8" One Piece SDS-MAX Core Bit is a heavy-duty rotary hammer attachment designed for fast, large-diameter hole cutting in concrete, brick, and masonry materials.

Built with a one-piece hardened steel construction, it delivers increased durability and stability under high-impact SDS-MAX hammer drilling. The 3-1/8" cutting diameter is ideal for larger utility penetrations, such as plumbing lines, conduit runs, and HVAC installations, while the 11-3/8" length provides extended reach for deeper drilling applications.

Designed for professional jobsite use, this core bit is engineered to reduce vibration and improve cutting efficiency compared to standard segmented systems. Its SDS-MAX shank ensures a secure, high-torque connection to compatible rotary hammers, maximizing energy transfer and drilling performance.

Common applications include:

• Large-diameter concrete and reinforced masonry drilling
• Electrical and mechanical conduit installation
• Plumbing and HVAC pipe penetrations
• Structural and commercial construction work