THarvey
Member
Somewhere I am missing the right drilling combination. Every piece (not an exaggeration) of pink ivory I drill cracks or breaks.
I have drilled on the lathe and drill press - pen blanks and brush blanks - twist bits, brad points, forestner bits - new bits and old bits - every speed from 300 to 4000.
The results are the same...The faster speeds crack, which shows up quickly on the lathe. The slower speeds break completely.
I have drilled a lot of crazy stuff over the years, but this is the only thing that has beaten me (so far). Any suggestions?
I have a customer order for pink ivory and just shattered my last piece. If anyone has some they would like to trade, let me know. I have some Cocobolo and Bloodwood available - I would be glad to trade 2 for 1 or 3 for 2 to be fair.
Thank you.
I have drilled on the lathe and drill press - pen blanks and brush blanks - twist bits, brad points, forestner bits - new bits and old bits - every speed from 300 to 4000.
The results are the same...The faster speeds crack, which shows up quickly on the lathe. The slower speeds break completely.
I have drilled a lot of crazy stuff over the years, but this is the only thing that has beaten me (so far). Any suggestions?
I have a customer order for pink ivory and just shattered my last piece. If anyone has some they would like to trade, let me know. I have some Cocobolo and Bloodwood available - I would be glad to trade 2 for 1 or 3 for 2 to be fair.
Thank you.