Product Questions

Diamond Scratching in Finish

APPENDIX III THE CAUSES OF SCRATCHING (this comes from the Raytech Shaw manual) (these ideas are not limited to faceting) Lap Contamination The appearance of unwelcome scratches on a facet while it is being polished is a problem which from time to...Read More

What's the difference between 80 grit and 60/90 grit, and what does it mean by ungraded?

80 grit would just be a straight 80 mesh grit whereas 60/90 would be mesh sizes between 60 and 90. Both are used frequently for coarse grinding. Ungraded means that it's not all one grit size, it ranges between the two numbers listed....Read More

what are the 4 polishing products supplied? for how much operation? can you polish soft stone with it ? if not, what additional items to take?

The kit includes 100/120 silicon carbide (rough grind), 700F silicon carbide (fine grind), Iolox 50 (pre-polish) and Raybrite TL(polish). This should work fine in soft stones, just watch them closely as a vibratory tumbler does work quicker than a rotary. This kit will keep you going for quite awhile but if you wanted an extra to be sure, the part number for that is 9-1056.....Read More

Apache Tears Tumbling Instrcutions

A little history about apache tears How to Use Apache Tears Energy Apache tears are said to have originated when the tears of grieving Apache women fell and froze after a battle with great loss of life. It is said that anyone who carries Apache tears...Read More

Is there a difference in function between the different dop wax colors? Green, brown, red, black… their descriptions seem to be the same.

Green, Black and Red dop wax are similar. Their colors make them have slightly different melting points. Brown has more shellac and therefore more holding power.....Read More

Do you have a shipping deal? As in free shipping for orders over.?..

Hi - We offer free shipping on certain products, but not on a set amount. Let us know if there's anything else we can do for you by emailing sales@kingsleynorth.com and we will be more than happy to help!...Read More

Covington buff & polish chart

INTRODUCTION This comes from the Covington Catalog Many stones polish equally well with several buff and polishing compound combinations. A very hard gem can be polished by a much softer polish powder. Only one polishing agent should be used on a...Read More

Rotary rock tumbling instructions

STEP 1: (80 GRIT) Fill the tumbler barrel 2/3 to 3/4 full with properly graded and sized stones....Read More

What grit is best to sharpen carbide stump grinder teeth

A Diamond Product is your best option because it is harder than Tungsten Carbide. These wheels are only rated for 1725 RPM. We recommend water cooling. Also dressing the wheel with a silicon carbide could help it from loading up....Read More

Approximately how many tablespoons are there per pound of grit?

Around 32, but this will depend on the grit's density. So this is a plus / minus answer...Read More