Big Mini Scratch Erasers - 3/4" - 5 pc. Set Machine Tumbler They are available with both

They are available with both a 3/4" and a 1" arbor hole

Color: Black/Silver

Use in combination with Covington's 24" Flat Laps for optimum performance

For applications that demand heavy grinding power

Big Mini Scratch Erasers - 3/4" - 5 pc. Set Machine Tumbler They are available with bothThese 3M Scratch Erasers are the perfect balance between theMini 1 2"size and theChubby Scratch Erasers. They Remove Scratches (!) in hard to reach areas: inside larger rings, tubular items, and can also be used for bracelets and cuffs. The coarser grades are great for deburring and the finer grades are amazing for burnishing metal & leaving a pre polished look. Shank mandrel diameter is 3 32 (2. 38 mm). (Actual shank may look different than pictured)