Greenlee Large Quick-Change Arbor, Model 645-022

The Greenlee Large Quick-Change Arbor is the dedicated accessory for the 645 Series carbide-tipped hole cutters, accepting cutter heads from 2-3/8" up to 3" for larger conduit knockout work. Its push-and-turn connection lets electricians swap between cutter sizes using the same arbor, eliminating downtime when changing head sizes on the job site. The 1/2" shank fits standard drill chucks and is built to handle the demands of repeated use in stainless steel, mild steel, and other tough materials.

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