NT heavy duty mat board cutter can cut both circle and oval shapes with 45 degree bevel edge finish on mat boards to customize and frame artwork and photos. Cuts perfect circles ranging 7-7/8" ~ 14-3/16" in diameter and ovals ranging 6-11/16" x 8-1/4" ~ 14-15/16" x 16-9/16" at 45 degree bevel edge. Adjustable blade depth can be set on this unique mat cutting tool according to the thickness of the material. Easy-to-grip handles fit hand comfortably for cutting 45 degree angle bevel edge with stability and control. Includes (2) refill blades and pushpins to help hold mat securely in position. Spare blades and pushpins can be stored in the grip compartment. This 45 degree cutter has high quality blades, which are made of high grade carbon tool steel for higher abrasion resistance and produced through multiple stages of precise process to obtain the ultimate sharpness and optimum edge-retention. Good to make decorative frame for pictures and photos or to frame artwork, etc. Made in Japan.