Walter 3-Inch Spinlock Flap Disc 40 Grit TR Mount

Aggressive Grinding for Tough Welds

When you need to knock down a weld in a tight spot, the Walter Spinlock Flap Disc 3" G40 is the tool for the job. Built for professional welders and fabricators, this disc combines the aggressive stock removal of a grinding wheel with the blending capabilities of a flap disc. The 40 grit composition is perfect for heavy-duty applications on steel, allowing you to strip away slag, spatter, and excess metal quickly. Its robust construction ensures it holds up under pressure, giving you a reliable bite every time you touch it to the metal.

Quick-Change Convenience

Stop wasting time fumbling with flange nuts and wrenches. The Walter 09A304 features the Spinlock "TR" button system, a quick-change mechanism that lets you swap out discs with a simple twist of the wrist. This is ideal for welders who frequently switch between grits or abrasive types during a project. The plastic button provides a secure, centered fit on your die grinder or right-angle grinder backing pad, ensuring the disc spins true for precise control and minimal vibration.

Versatile 3-Inch Size

Big grinders have their place, but they can't go everywhere. This 3-inch flap disc is the perfect companion for detail work and confined areas. Whether you are cleaning up a fillet weld, prepping a surface for painting, or smoothing out an edge in a tight assembly, the compact profile gives you the access you need. It allows for greater visibility of the workpiece compared to larger discs, helping you maintain accuracy and avoid over-grinding critical components.

Superior Finish and Longevity

Walter is known for producing abrasives that last, and the Spinlock Flap Disc is no exception. The high-quality abrasive cloth is layered to wear evenly, exposing sharp new grain as you work. This self-sharpening effect prevents the disc from glazing over and ensures a consistent finish from the first spark to the last. By combining grinding and blending into a single step, this disc not only speeds up your production but also leaves a smoother surface that requires less rework, helping you turn out professional-looking parts faster.