62528 - Pferd 5-Inch Zirconia Fiber Disc 36 Grit Z-Cool Series

Grind Fast, Keep it Cool

If you work with stainless steel, you know the struggle: you need to grind down a heavy weld, but you don't want to put so much heat into the metal that it turns blue or warps. Enter the Pferd 5-inch Z-Cool Zirconia Sanding Disc. This isn't your average hardware store sandpaper. It is built specifically for the welder who needs to hog off metal fast without ruining the workpiece. The "Z-Cool" name refers to special additives in the disc that actually lower the grinding temperature, acting like a built-in lubricant that keeps the friction heat in check.

The 36 grit rating means this disc is a workhorse. It is coarse, aggressive, and ready to eat through weld beads, spatter, and heavy mill scale. Because it uses Zirconia grain, it loves pressure—the harder you push, the better it cuts. Unlike cheaper aluminum oxide discs that dull quickly, this Zirconia grain fractures as you grind, constantly exposing fresh sharp edges so you don't lose performance halfway through the job. It fits standard 5-inch grinders with a 7/8-inch arbor, but remember, you'll need a backing pad to run it.

Why choose this over a standard grinding wheel? Flexibility and finish. While a hard wheel is great for digging in, this fiber disc gives you a smoother blend and covers more surface area, making it easier to feather out welds and prep surfaces for polishing or painting. If you are fabricating tanks, food-grade equipment, or custom stainless parts, this disc helps you get the job done quicker and with less cleanup afterwards. Stop fighting the heat and let the abrasive do the work.