Details
Fundamental Rockhound Products: 2 lb 500 Fine GRIT for Rock Tumbling polishing and vibratory laps Silicon Carbide

Two pounds Fine size 500 straight silicon carbide grit.
Made for rock tumbling and vibratory laps, this is Graded AAA Qualty
Use as third step in rock tumbling
Size 500 saves you money! Replaces using 400 and 600.
Size 500 silicon carbide grit is the new favored fine grit for tumbling and vibratory laps. Rather than purchasing size 400 fine and 600 very fine, just use size 500 for your third stage. It works great in place of size 400 and within a week of running it is broken down to size 600, so just run another week. Not only will this save you cleaning your tumbler for one step, it saves you money.