Let me tell you, these angle grinder guards are a game-changer for my workshop. I've been using them with my 125mm grinder, and the metal construction feels solid - no flimsy plastic here. When sparks start flying during metal cutting, I actually feel safer knowing this guard's got my back.

The adjustment took some fiddling at first - that reviewer wasn't kidding about needing a 10mm nut driver. But once I got the hang of it, switching between the 4-inch and 6-inch guards became second nature. Pro tip: Loosen the collar completely before trying to reposition it.

What really surprised me was how well these work with different disk sizes. Last weekend I was trimming some rebar (using the 5-inch guard), then switched to a smaller disk for detail work without missing a beat. No more dangerous bare-grinding situations because 'the guard doesn't fit'.

The only hiccup? The middle position sometimes needs an extra tighten check mid-job. I've started keeping my nut driver in my apron pocket just in case. But considering how much safer and more versatile my grinder is now, that's a tiny trade-off.

For DIYers who use multiple disk sizes (or anyone whose original guard broke), this set solves so many problems. Just be patient during setup - that initial adjustment makes all the difference.