Angle Grinder Disc Won’t Tighten? Here’s the Fix
Spindle lock, flanges the right way round, and the pin spanner. Why a grinding disc goes on cup-side down, and what to do when the nut will not tighten.
Angle Grinder
How to Replace Carbon Brushes in an Angle Grinder in 2 Minutes
Weak under load, orange sparking, or cutting out when tilted usually means worn brushes. How to confirm it is the brushes, measure for the right replacement, and fit them.
How to Use an Angle Grinder: The Complete Beginner’s Guide
An angle grinder is whatever disc you fit to it – a metal saw, a rust stripper, a tile cutter, a sander. Here is the tool, every disc, the safety rules that have a mechanism behind them, and how to cut and grind without it fighting you.
How to Remove Rust from Metal Before Painting (DIY Guide)
I painted an old balcony railing without removing all the rust. It looked fine for about three weeks, then little orange spots started pushing through the paint like pimples, and I had to redo the entire job. Take rust back to solid gray steel, wipe the surface clean, and prime it the same day. Paint … Read more
Corded vs Cordless Angle Grinder: Buy the Corded One
Corded for almost everyone, cordless as a second grinder for the jobs the cable can’t reach. Plus the one safety feature that argues the other way.
Angle Grinder vs Die Grinder: Buy the Angle Grinder First
They aren’t alternatives. One removes material fast, the other removes exactly the right material. Which to buy first, and what each physically cannot do.
How to Control Angle Grinder Speed (and When Not To)
Three ways to slow a grinder, what speed each job actually wants, and the DIY SCR controller that runs any brushed tool up to 2,500 W.
How to Change an Angle Grinder Blade Without the Spanner
Lost the pin spanner? Four ways to get the flange nut off, the thread and speed chart for refitting, and the one improvised method that wrecks grinders.
How to Cut Metal With an Angle Grinder: Which Disc? (2026)
Cut metal with an angle grinder by fitting a thin (1 mm) abrasive cut-off disc rated at or above the grinder’s free speed, clamping the work on both sides of the line so it can’t sag and pinch the disc, and letting the disc’s own speed do the cutting rather than leaning on it. That’s … Read more
How to Make a Metal Railing for a Balcony (Cut List)
I burned out an angle grinder on this railing. It was a 650W Black+Decker small grinder, clamped into a cutting stand, and I did not think about what an angled cut does. A 45-degree cut makes the disc travel through far more metal than a straight cut, and it has to do it 232 times. … Read more