Our Four-Step Grit Kit is maximized to tumble a wide variety of rough rock -- from soft to hard -- and contains enough grit to tumble approx. 10 lbs. of stones. Step 1 (coarse) is a of 60/90 silicon carbide abrasive; Step 2 (medium), 120/220 silicon carbide abrasive; and Step 3 (fine), is a 500 fine mesh silicon carbide abrasive.
Step 4 uses the newer TXP super high-end polish for all rock types including very hard ones such as petrified woods, agates, etc. This top quality tumbling polish is a micron alumina product that is non-toxic (still not suitable for drains).
Step 1-3 grits are 1 lb. containers. Step 4 is a 1/2 lb. container.
