The flap a wheel has a ø6mm steel shank and it runs through the wheel creating better balance to reduce operator fatigue. Used with portable drills or die grinders.
These flap wheels
are used in the metal fabrication and welding industry for stock removal,
blending, deburring, cleaning, finishing and polishing.
Designed to deliver a consistant finish with a uniform rate of cut. Flap wheels wear away, continually exposing new Aluminium Oxide abrasives. These abrasives are a good choice for hard-to-grind materials such as aluminium, bronze, brass, stainless steel, carbon steel and titanium.
Flap wheels can be used for achieving a satin finish on steel, aluminium, brass and hard plastics.
Wear eye, face, body and respiratory protection.
What is grit?
When talking about sandpaper 'grit' is a reference to the number of abrasive particles per inch of sandpaper. The lower the grit the rougher the sandpaper and conversely, the higher the grit number the smoother the sandpaper.
This make sense if you imagine how small the particles on an 1000-grit sandpaper would need to be to fit into a 1' square (25,4mm square). Sandpaper is referred to by the size of its grit (Example 120-grit sandpaper or P120 sandpaper).