This is useful 0.4-3.4mm keyless chuck universal electric grinding chuck for Dremel rotary tool when use different drill bits.<br><br><strong>Features:</strong><br>Keyless chuck allows simple accessory changes without changing collets.<br>Universal chuck allows quick and easy accessory changes without changing collets.<br>Easy to use and install. ? ?<br>Grind conveniently， safely and quickly. ? ?<br>Useful universal collet tool accessory for Dremel and Hilda.<br><br><strong>Specifications:</strong><br>Color: Black<br>Material: Metal<br>Applying: Electric Polishing， Grinding<br>Item Size: 14.5mm * 22mm / 0.6 * 0.9in (D * H)<br>Internal Thread Size: 8 * 0.75mm / 0.3 * 0.03in<br>Chuck Thread Diameter: 9/32-40<br>Clamping range: 0.5-4mm / 0.02-1.6in ? ?<br>Item Weight: Approx. 6.7g / 0.2oz?<br>Package Size: Approx. 11 * 5 * 1.5cm / 4.3 * 2.0 * 0.6in<br>Package Weight: Approx. 11.2g / 0.4oz<br><br><strong>Package List:</strong><br>1 * Universal Chuck<div id="descriptionImg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-k2Ev.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-xXvV.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-Gwvd.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-5a0z.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-5KV3.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-HzOz.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-fFXR.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-5eJE.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/E/0/E1440/E1440-1-c679-k2Ev.jpg"></div>