What size Sanding Mop should I use?
If you are a woodworker, we suggest that you use a 6" Mop because it does not require the same amount of RPM's as the 4". A 4" Mop requires a minimum speed of 4000 RPM's and most woodworkers do not have the tools to run a 4" properly. You will not get the life out of a 4" Mop running it on a drill as you will out of a 6". If you are working with metal, we suggest you use a 4" and run it using air tools. Overall, you are going to get a longer life out of a 6" Sanding Mop.