DEWALT DW8311 4-1/2-Inch by 5/8-Inch-11 36 Grit Zirconia Angle Grinder Flap Disc

it wears out fast but while it has the abrasive it takes out metal material fast

Excellent on fiberglass. Really cuts through so be careful. I found controlling it was easy after a little practice. Lasts long time.

I sculpt with metal, mainly found steel, and use flap discs in the finishing process often on very rough surfaces. These discs are workhorses, work rapidly and produce fine finishes

Great item, works as directed. One thing I could not find on the disk is the expiration date. I thought all discs had them.

Used a few of these flat wheels to refurbish a rusty mower. Worked slick and so much better then a flexible abrasive disc. Anyone with a 4-1/2 grinder should have a few of these to go with the other discs.

If you are working around the garage it works out ok. If your into heavy fabrication and welding you might want to keep looking and spend a little more money.

Used this to clean up some thick metal brackets and it did great! Very smooth and easy to control. Used it on 4 brackets total and looks like it still has quite a bit of life left so will definitely buy more in the future if need be.

I bought this for my angle grinder to sharpen my lawn mower blades. Works great.

Very high quality. I save this for the finishing touches

This grinding wheel did an excellent job at grinding the welding areas 3 time faster and also smother then a standard grinding wheel.