Simpson 6 x 8 Column Base G90 Galvanized CB68 Driver Bits This core bit is constructed

This core bit is constructed from carbon steel and is built to the same exacting standards as Simpson Strong-Tie's carbide-tipped drill bit lineup

FLAT tooth geometry with adjustable kerf for chip-free scoring

Moulding Profiles

What is the blade kerf and why does it matter

The ECC44 features uplift loads increased for earthquake or wind loading

Simpson 6 x 8 Column Base G90 Galvanized CB68 Driver Bits This core bit is constructedThe Simpson CB68 Column Base for 6x8 by Simpson Strong Tie is engineered to connect posts to concrete foundations across a wide range of lumber, glulam, and engineered wood product sizes. Designed for either cast in place or wet set installation, the base plate sits flush with the concrete surface to provide full post bearing. Built from 7 gauge steel with a G90 galvanized finish, the CB68 is the trusted choice for columns demanding high structural