Description: 【Effortless Slug Ejection】: Quick release design, simply pull back the collar to instantly eject wood plugs and debris from your hole, get back to drill in seconds, not minutes 【Secure Tool】: Swap out hole saws in an instant with the secure self locking arbor, A quick twist firmly locks the saw in place, prevent any wobble or accidental detachment during high torque use 【Professional】: Constructed from quality, lightweight aluminum alloy, this connecting rod is built to withstand the demands of any project, reliable performance for both professional tradespeople and DIY enthusiasts 【Universal Drill & Saw Compatibility】: Designed for versatility, this arbor features a standard 5/8" thread that fits the majority of bimetal and woodworking hole saws, The 10mm shank (fits 3/8-inch and larger chucks) ensures a secure grip in most hand drill, cordless drill, and drill presses, making it a valuable addition to any toolkit 【Complete Set】: This package includes a complete quick release arbor system, ready to go right out of the box, the quick change connector, providing everything you need to upgrade your drill experience Size Chart: Length: 19.2cm/7.56inch Handle: 1cm/0.39inch Package Includes: 1 Bimetal Drill Bit Set Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.