Product Description Innovative Bowling Products plug cutter and replacement blades are precision machined, hardened, and zinc plated resulting in years of use! Perfect pro shop tool for cutting ball plug and thumb slugs.Special Features:* “Knocked” corners eliminate gouging if press is not at 0 – 0* Blade slightly offset for a smoother, cleaner cut* Blade is machine contoured to better match the curvature of the ball surface* Blade edge technology that minimizes scraping or sanding