
Every welder knows the frustration of taking a standard grinding wheel to a piece of aluminum. Within seconds, the wheel gums up, turns silver, and stops cutting. You end up generating more heat than chips, and you ruin the wheel in the process. The Walter ALU™ 4-1/2" Grinding Wheel is the solution to that headache. It is built specifically to chew through soft, gummy metals like aluminum without loading up, keeping your work moving and your grinder cutting freely.
This isn't just a standard wheel with a different label. The 08L452 uses a special recipe that prevents the aluminum from sticking to the abrasive grains. This means you get a consistent bite from the first spark to the nub. At 1/8-inch thick, it's the perfect "hybrid" size—beefy enough to grind down a tack weld or deburr an edge, but thin enough to slice through a sheet or trim a piece of stock. It saves you the time of swapping between a zip wheel and a grinding rock every five minutes.
Weld Prep Made Easy
One of the biggest hidden killers in aluminum welding is contamination. Many "aluminum-specific" abrasives use waxes or lubricants to keep the wheel cool, but that residue gets embedded in the metal and causes porosity in your TIG or MIG welds. The Walter ALU™ wheel is completely free of waxes and lubricants. You can grind your joint and strike an arc immediately afterwards without having to wipe everything down with acetone first. It’s a cleaner, faster, and smarter way to prep your aluminum projects.
| Additional Information |
|---|
| Brand:Walter Surface Technologies |
| Diameter:4.5" |
| Thickness:0.125" |
| Arbor In:7/8" |
| Used To Grind:Aluminum |
| Grit:24 |
| Packaging Description:25 per each |
| Wheel Type:Type 27 (Depressed Center) |
| Max RPM:13,300 |
| Material Application:Aluminum, Non-Ferrous Metals |
| Bond Type:Resinoid |