Walter Coolcut XX 4.5-Inch Quick-Change Sanding Disc Grit 36

Maximize Arc Time with Quick-Change Efficiency

For professional welders and fabricators, the Walter 4.5" Grit 36 Coolcut XX™ Quick-Change Sanding Disc is a game-changer in terms of productivity and ease of use. We all know that grinding is often the most tedious part of the fabrication process. Whether you are prepping a joint for a weld or knocking down a heavy bead afterwards, you need an abrasive that cuts fast and lasts long. The Coolcut XX™ series has built a reputation for exactly that—delivering aggressive stock removal without bogging down. With this 36-grit option, you have a tool designed specifically for the heavy lifting: removing mill scale, taking down heavy welds, and shaping metal quickly.

The standout feature of this specific model is the Quick-Change system. Traditional resin fiber discs require you to stop, find your pin wrench, undo the flange nut, swap the disc, and tighten it all back up. That process eats up valuable arc time. With the Quick-Change format, you simply twist the disc off and twist a new one on. It centers itself automatically and locks securely during use. This means you can switch from a worn disc to a fresh one in seconds, keeping your momentum going. To get the most out of this system, you'll want to pair these discs with Walter's Quick-Change Turbo backing pads, which are designed to support the disc and provide the cooling airflow needed for heavy grinding.

Heat management is another area where the Coolcut XX™ shines. Grinding generates friction, and friction generates heat. On materials like stainless steel, excessive heat leads to "blueing" or discoloration, which often means you have to stop and passivate or polish the area again. These discs are formulated to run cooler, helping you preserve the base material's properties while still grinding aggressively. They are also highly versatile, suitable for use on steel, stainless steel, aluminum, and other non-ferrous metals. This versatility means you don't need to keep five different types of discs in your toolbox; the Coolcut XX™ can handle the majority of your rough grinding needs. With 25 discs in a package, you have plenty of inventory to tackle large projects without constant trips to the supply cabinet.