Post #289481 by Tamapoutini on Sat, Mar 3, 2007 6:10 PM

On 2007-03-03 17:52, pdrake wrote:
i kind of meant holes for inlays. i use the tiny balls to start holes and needle tips to go all the way through. i need a way to make a nice squared of hole with straight up and down walls.

thanks!

In that case you'll probably need something more like the two seen here on the left; they would both leave a pretty much straight-sided hole... Both of these types are available in larger sizes. (if money is no object, burrs of ANY type or size can be turned by a metal-machinist & can be coated with diamonds at a company specialising in that)...
The two central core-drills are often used to make an inlay-hole with a central 'peg' left in the middle (as I usually make the eyes on my hei-tiki; although I dont use this tool to make the socket, preferring the more 'organic' feel created by going round & round with a small ball-burr (right)

I would also stick with diamonds over any of the other abrasive cutting materials.

Hope this helps.

Tama :)

[ Edited by: Tamapoutini 2007-03-03 18:11 ]