Carbide Burr 1/4" Shank, SA-3 Tungsten Double Cut Rotary Die Grinder Bits - Cutting Burrs for Milwaukee, Dewalt and Makita Die Grinder Accessories - Wood Carving Metal Working & Sturdy Storage Case

Used on plastic workedca treat to get my speakers in.

You can see the quality of this product just by looking at it!!

On plain old mild steel it isn't bad at all. Lasts well for cost

Went through steel like it was butter

This tool is so much better than my Snapon carbide bit I had to hold back so not to grind through half shaft when removing bearing retainer on hilux 😂

Needed to ream out a 22 mm bearing outer race that was stuck in a caravan roller (needed to remove 1 mm of material round the whole circumference). It did the job, just, but blunted to the point where it is useless now. Bearing steel is very hard, so I was probably expecting too much. I’d buy multiple cheaper ones next time, expecting to go through them at a rate. Buying what I perceived as a “better” quality item was a waste of money. For the inner race that was stuck to the shaft I had to resort to using an angle grinder instead. This item will go through soft material well, but not harder steel.

Good addition to your tiling tool box

Hoped for great things but burred pretty quickly and did work for what I needed