Wide Head Design for Cutting Along Straight Edges. Tap Wheel™ Technology Provides a Superior Cut. This Toyo Replacement Cutting Head is used exclusively with the Toyo Custom-Grip Supercutter™. It features the patented Tap Wheel™ system with eight microscopic "cams" inside of the axle bore. This creates eight "taps" per wheel revolution to produce a cleaner, more consistent cut, greatly enhancing the end result. Length: 1-1/4 in (32 mm) Width: 3/4 in (19 mm) Additional Product Information: The straight head design allows the user to cut along straight edges or L-squares with excellent results. One simple set screw is removed for easy replacement. The 134 degree hone angle is perfect for all general cutting.