Gives a clean finish to abrasive materials such as softwood, chipboard, MDF, plywood and certain hardwoods. Microgranular carbide tips for perfect sharpness. Suitable for use with Trend Hinge Jig. Specifications: For use with a .5" or ?" capacity router fitted with a ?" collet. Compatible with Trend Hinge Jig. 12mm diameter, 19mm depth of cut, ?" shank long reach trade quality router cutter.