Built with bi-metal construction, this Greenlee Tools 38506 hole saw features a 7/16-inch (11mm) cutting diameter for precise and efficient hole cutting. Designed with a large arbor for added stability and compatibility with standard drill chucks.

Constructed from durable steel, this Ideal 36-570 round arbor is designed for use with 9/16-inch to 1-3/16-inch hole saws. Features a 1/4-inch shank that fits standard drill chucks for secure and stable operation.