MJR Tumblers 1 Pound 36 Silicon Carbide Rock Grit Extra Coarse

. Breaks down too soon. no trace after 36 hrs of tumbling.

. Breaks down too soon. no trace after 36 hrs of tumbling.

it does the job pretty good, I use it in a tumbler to sand large pieces instead to have to sand by hand.

This product was phenomenal. It helped me take a whole week off of the time needed for my tumbles! Highly recommended if time is a concern!

It is pricey. Worked ok but not that much better than the 90 grit which is much less expensive

Not that good.

Received as advertised, and timely.

love ,love,love to see a plane rock turn into a shiny gem

It is pricey. Worked ok but not that much better than the 90 grit which is much less expensive

Wasted a week trying to polish with this stuff. It did nothing.