Neiko Flap Disc Extreme Test Results (5 of 31)

[@zrobotics]

Honestly, that's super interesting for not just these disks. I've been using flap disks wrong this whole time, I assumed that heavy pressure on hot material would wear them out faster. I normally use flap disks for light cleanup and polishing, so I never use them with tons of pressure. If I need to do heavy grinding, I've always switched to a regular abrasive grinding disk. Super good to know.

[@marambula]

gotta love a standard test when it shows such glaring differences between an independent variable such as pressure from the grinder.

[@patmancrowley8509]

I worked for a manufacturing company that produced steel cabinets for parts washing. I found the sales staff putting in positive comments about the product and giving it a 5 star rating. Since that day (1990's) I haven't believed one ratings comment.

[@spambox1894]

Great series!

[@davidstone1579]

I notice something important here. Normal grinding disks and wheels have a bonding material which is quite weak compared to a sharp grain but breaks down when the grains become blunt, exposing a new cutting face. All these disks seem to be bonded far too strongly, so that blunt grains just become smooth and useless (glazing). This happens to proper wheels when cutting the wrong materials, say aluminium, but in this case steel should be fine. In flap disks it is very important that blunt grains break off, the flap wears a little and exposes new abrasive. This is not what is happening. I think all these wheels probably come from the same factory, they are very poor. Please test a Norton one next to see what a good wheel does!! CEng!

[@kevanromero]

This is the one I was waiting for, because we use these at work. I don't really have a way to prove it but we've used them for years, and they're fine for what we do... which is mainly to smooth out and blend surfaces with 80 grit. Or make a chamfer on an edge, or to remove paint/rust. So nothing serious where the goal is to remove a lot of material. It's neat seeing how "poor" these perform compared to others!

[@Kyles_kittens]

Hey!needed this, ordering items for my work and I want to get good ones or atleast know what I'm getting into if i get cheap ones. Used just for cleaning up welds and plasma cut stainless steel.

[@user-dg7sy8cz3b]

Chinesium garbage has either forced or inspired other manufacturers to lower quality in order to compete. How many of these different “brands” are the same item with different labels? More than we think probably?

[@illRun4Clownident]

there are so many manufacturers and rebrands out there. im kinda bummed that you probably dont have my local flavor in the USA. But thank you for the hard work!

[@Freeman-Dl70]

Honest reviews are less than lying reviews. I guess they receive them free.