{"product_id":"ujk-tools-router-collet-extension-8mm","title":"UJK Router Collet Extension (8mm)","description":"UJK Router Collet Extension (8mm) addresses a common challenge faced when using routers inverted in a table. Often, even when fully plunged, the collet sits below the table surface, limiting cutting depth. This precision extension utilizes standard ER20 engineering collets that grip over a 1mm diameter range without sacrificing accuracy, ensuring a safer and more stable cut with reduced vibration. The collet nut features an ejection ring for quick and easy cutter changes, and the extension supports speeds up to 18,000 RPM. For optimal use, insert the collet extension at least two-thirds of the way in, up to the K line. It is recommended to start your router at the slowest speed, test the cutter setup on scrap timber, and gradually increase speed while monitoring for vibration. If vibration occurs, reduce the router speed to maintain the best cut quality.\n\nModel Number: 111748","brand":"UJK Tools","offers":[{"title":"Default Title","offer_id":48013628735651,"sku":"1996646","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/2469\/7763\/files\/9b4322659543418028d96a3af96f8ccec2554434_1996646_1.png?v=1792740417","url":"https:\/\/www.hartvillehardware.com\/products\/ujk-tools-router-collet-extension-8mm","provider":"Hartville Hardware","version":"1.0","type":"link"}