These cutters are for use with our Slitting Saw Mandrils, in conjunction with our gunsmith plate. The tool is domestically produced and made from micrograin carbide which gives long life and excellent finish. Our straight cutter is squared with no angle built in, used for Caspian and Gold Cup style serrations. The 15 Degree Cutter reproduces Colt, Springfield and GI style serrations. Our 60 Degree Saw can be used to serrate tops of slides, mainspring housings and Les Baer-style slide serrations.