Description The DEWALT RAPID LOAD(R) Quick Change Hole Saw Accessory System Allows For Changing Hole Saws And Pilot Bits Without Additional Tools. The Collar Clicks Between Two Positions For Saw And Pilot Bit Change And Stays In Position For One-Handed Application. The No-Seize Collar Stays Engaged While Drilling To Resist The Hole Saw Locking Onto Arbor. DEWALT RAPID LOAD(R) Arbors Fit With All Threaded Hole Saws, No Adapter RequiredQUICK CHANGE: Hole Saw Accessory SystemTOOL-FREE CHANGE: Quick Change Design Allows For Changing Hole Saws And Pilots Without Additional Tools**RAPID-LOAD QUICK CHANGE ACCESSORY SYSTEM: Step 1) Remove Saw, Step 2) Remove Pilot BitNO-SEIZE COLLAR: Collar Stays Engaged While Drilling To Resist Hole Saw Locking Onto ArborUNIVERSAL HOLE SAW FIT: Accepts All Threaded Hole Saws Without Use Of AdaptersItem Weight: 11.6 ouncesProduct Dimensions: 7.5 x 2.5 x 2.5 inches WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov