Lenox Tools 1852048 Snap-Back Arbor Extension, 12-Inch LENOX Tools Snap-Back Arbor Extension, 12-inch, 1L / 2L / 3L (1852048). The snap-back quick-change lets you engage and disengage extension from hole saw quickly and easily with just one hand. No tools necessary. The patented jaw design holds bits securely on ball detent bits; no threads to strip. Magnets in the connector provide additional holding power. A carbon steel collar and shaft provide durability and extended tool life. Requires no adapter. The arbor threads directly into all hole saws. Works with 1/4-inch arbors and insert bits. Fits 1L, 2L, and 3L Standard Arbors and 2L Snap-Back arbors. Product Features Quick Change: Faster and easier to engage/disengage hole saw Prevents Threads from Stripping: Drives off pins, not threads No Tools Needed: Prevents hole saw from locking on arbor No Adaptor Required: Arbor threads directly into all hole saws Easier Plug Removal Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!