The product is Spiral Cut Bit</br>Easy to use</br>The product is manufactured in China</br>Steel shank cutter</br>Cuts wood?? plastic?? fiberglass?? drywall?? laminate?? aluminum?? etc.</br>1/8"</br>Do not run in excess of 30??000 RPM</br></br>Product Description</br></br>The product is Spiral Cut Bit</br><br/>http://www.amazon.com/gp/product/B00004UDIBB8/785