@67975218 storage space is ok but you will find the fumes are gross. i would wear an N95 respirator. 

the abrasive wheels are bonded rubber, fiberglass, and aluminum oxide (or other abrasive)  

so the rubber burns, dust and fine metal and fiberglass particles become airborne. you def want a mask for that

and ventilation.  it's not going to kill you immediately  but it's best not to breathe it 

 @67975218 ps you can use a diamond wheel if you want to cut down on harmful dust and rubber fumes 

 @woodland creature :pleroma_fox_tan: i thought those were for using on stone 

 @67975218 diamond will cut anything. the only thing idk about is aluminum- it may gum up the wheel. you'd have to try it out.  diamond can cut steel though.

certain abrasives work best on different materials- AlO2 (the black ones) are good for steel. aluminum gums them up 

 @woodland creature :pleroma_fox_tan: ok ty, ill try it 

 @woodland creature :pleroma_fox_tan: oh 1 more question, do you wanna move it along the coil in the same direction that its spinning or the opposite or does it not matter 

 @67975218 what you're talking about is "climb" vs "conventional" cutting direction.  for hand held tools you generally want to use conventional cutting. meaning, you're pushing against the direction of force rather than with it.

reason being a "climb" cut has a tendency to get away from you by climbing onto the work 

 @woodland creature :pleroma_fox_tan: that makes sense. thanks