What is the best kind of drill to make beads from stone and sea shells?

2016-05-21 2:59 pm

回答 (5)

2016-05-25 3:55 am
Carbide tipped drills for concrete work for stone. as for sea shells, I would try a standard High Speed Steel bit. Feed with light pressure to prevent cracking the shells.
參考: Machinist
2016-05-21 5:46 pm
granite would be the best to make beads out of
2016-05-21 4:55 pm
Way too many unknown variables here. What kind of stone? Exactly what kind of seashells?

There are literally thousands of different types of stone. A diamond is a stone, and so is soapstone. But a diamond will break most drill bits without scratching, and soapstone can be cut with a butter knife.

Same deal with shells. They come in all shapes, densities and sizes.
2016-05-21 3:01 pm
Anal beads


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