Adapters re-useable to minimize costs. Universal, works with any brand hole saw. Faster, easier slug removal. Only one arbor required from 7/8-inch to 6-inch. Allows for rapid mounting or removing of hole saws.
Finding arbors/arbors for hole saws can be pretty tricky with all that quick release/proprietary junk. These bushings convert a regular 1/2" mandrel/mandrel to a 5/8" mandrel/mandrel. Did.