Walter 1-1/2" x 3" Zirconia Grinding Plug 5/8"-11 Arbor

Aggressive Metal Removal for Hard-to-Reach Areas

When you are welding pipe or working on complex fabrications, there are always those tight corners and internal diameters where a 4-1/2" angle grinder just won't fit. That is where the Walter 12C201 Grinding Plug becomes your best friend. This isn't a delicate finishing tool; it is a 16-grit beast designed to rip off metal fast. If you have a heavy weld seam inside a pipe or a rough casting that needs smoothing out, this plug gets the job done efficiently.

The plug features a built-in 5/8"-11 thread, meaning you can screw it directly onto your straight grinder or compatible die grinder spindle. No fiddling with chucks or worrying about the stone slipping under load. Because it spins true and is perfectly balanced, it doesn't chatter or bounce, giving you control even when you are leaning into a heavy grind. The square-end Type 18R shape allows you to grind flat at the bottom of a blind hole or work along the sidewalls of a cavity with equal ease.

Durability is key in the shop, and the Zirconia Alumina grain used in this plug is self-sharpening. As the grains fracture, they expose new, sharp cutting edges, keeping the cut aggressive throughout the life of the stone. It works great on carbon steel and won't contaminate stainless steel, making it a versatile addition to your tool crib. Stop struggling with worn-out burrs or undersized mounted points—use this heavy-duty plug to clear out excess metal in record time.

Key Benefits for Welders

• Fast Stock Removal: 16 grit eats through weld metal and slag.
• Secure Mounting: Threads directly onto the grinder for safety and stability.
• Versatile Shape: Perfect for ID grinding, beveling pipe ends, and cleaning castings.
• Long Life: Tough bond holds up to heat and pressure.