QUICK CHANGE: Faster and easier to engage / disengage hole saws. NO ADAPTOR REQUIRED: Arbor threads directly into all hole saws. PREVENTS THREADS FROM STRIPPING: The drive-off pins prevent the arbor from tightening on the hole saw during use. NO TOOLS NEEDED: The arbor sleeve doesn't need to be held back to engage and disengage the arbor. Easier Plug Removal
