Hammer Tip, Material Vinyl, Tip Hardness Medium, Diameter 2 1/2 in, Color Red, Thread Size 7/16-14, Mounting Threaded, Shape Round, Non-Marring Yes, Compatible with Brand Quick-Change Impax, Compatible with Grainger Part Number 3MD68, 5LV13, 5LV14, Compatible with Manufacturer Model Number 6894171, 6894203