2-5/8" X 22" One Piece Spline Core Bit
2-5/8" X 22" One Piece Spline Core Bit
48-20-5464
The 2-5/8" x 22" One Piece Spline Core Bit is a heavy-duty masonry drilling solution designed for deep, large-diameter hole cutting in concrete, brick, and block when used with spline-drive rotary hammers.
Constructed from one-piece hardened steel, this core bit delivers superior strength and durability under continuous high-impact drilling. The extended 22-inch length allows for deep penetration applications, making it ideal for through-holes and thick structural materials, while the 2-5/8" diameter is well-suited for medium-to-large utility openings.
Engineered for professional performance, the core bit cuts a clean circular path while leaving a center core that can be easily removed. Its spline shank provides a secure, high-torque connection to compatible tools, ensuring efficient energy transfer and minimizing slippage during operation.
Common applications include:
- Deep concrete and masonry drilling
- Plumbing, electrical, and HVAC penetrations
- Through-wall and structural pass-throughs
- Commercial and industrial construction work

$187.92