Compatible with blades: CB15U, CB15U-K30*, CB15U, CB15UA, CB15U-K301.5mm** Blade-holder with a red top, and brass tip for CB15 blades. These brass tip blade holders/plungers are more rigid and lend to more accurate cutting.
NOTE: Remove CB15 SP Blade spring before installing into this Blade-holder. DO NOT install any blade spring.