The LENOX SNAP-BACK Hole Saw Arbor has a quick-change system that is fast and easy to engage and disengage. It helps minimize thread stripping, so it drives off pins, not threads. No tools are needed, helping prevent the hole saw from locking on the arbor. The LENOX hole saw arbor also threads directly into virtually all hole saws, with no adapter needed. Easier plug removal helps save time.