BRAND-SPECIFIC: The perfect fit for Bosch Colt 18V Cordless GKF18V-25 compact router (no more fumbling through dozens of universal hole patterns) COMPATIBLE: These base plates work with standard (Porter Cable Style) template guide bushings. The center opening measures 1.2 inches, accommodating router bits with a maximum diameter of 1 inch. DURABLE: Made from tough 3/8" thick cast acrylic STABLE: The large 6"x10" surface provides ultimate stability CONTROL: Includes two 4 inch handles for ultimate control MADE IN THE USA: All plates are designed and made in Colorado The Dual Grip sub-base plate provides the ultimate control and stability for your compact router. It offers two 4 inch handles and is a great option to cut inlays whether you’re routing following a template or freehanding.