US Patent 7104738 Hole saw arbor

An arbor (20) for a tool is provided. The arbor includes a shaft (22) and a locking mechanism (24) operatively coupled to the shaft. The arbor also includes an adapter (26) removably coupled to the shaft by the locking mechanism, the adapter being selectively configurable within the shaft between at least a first operating position, where the adapter is configured to secure a first tool accessory (62, 66, or 72) to the arbor, and a second operating position, where the adapter is configured to secure a second tool accessory (62, 66, or 72) different at least in part from the first tool accessory.