Make hole saw bit changes quickly and easily with the Milwaukee 3/8 inch Large Thread Quick Change Arbor. It doesn’t require the use of an adapter and its universal fit is compatible with all hole saw brands. The hardened carbon steel and alloy steel composition stands up to repeated use and the tool-free operation makes bit swaps a cinch. Tool-free operationUniversal, quick change with all brands of hole sawsNo adapters requiredDurable hardened steel constructionFits all hole saws 1-1/4 in. and largerFits all drill chucks 3/8 in. and larger