Indispensable bit for making cabinets. This allows you to make cabinet front frames in 25mm stock that fit perfectly with the sides. The added V-cutter feature makes a decorative groove along the hinge joint to hide the seam. For best results, leave less than 3mm overhang on cabinet front frames for easier routing. From the Manufacturer Indispensable bit for making cabinets. This allows you to make cabinet front frames in 25mm stock that fit perfectly with the sides. The added V-cutter feature makes a decorative groove along the hinge joint to hide the seam. For best results, leave less than 3mm overhang on cabinet front frames for easier routing.