Boron Carbide F400 Grit Sapphire Lapping 5 lb

The grit came quickly. I had a little glitch on my order and the owner called me and it was resolved promptly.

Using for rock tumbler.

Works great

Cheap and works well!

Hubby says it works well
Advantages: 25lb boxes are all I can carry, nice to not have smaller quantity options.

Great item exactly as mentioned

Great for paint prep lasts long time

for my husband's shop
Disadvantages: no complaints he was happy

Good price, easy to scoop.
Advantages: Bulk pricing is nice, pail is nice.

I’ve been buying abrasive from them for about 10 years and working with them has been a pleasure.
Advantages: Response time, pricing and quality is top notch
Disadvantages: None

for rock tumbling just a hobbyist
Advantages: nice to be able to pick all grit sizes
Disadvantages: had to wait for it to be packaged before shipped

Bought the mold casting release, will buy again

Good stuff, lasts forever.
Disadvantages: Having to buy a full pound at a time.

Used for cleaning old wheels good stuff
Advantages: works

Excellent corporate buy