[tc26]

Here is a link to our drill supplier
Applied Matrix

Drills range in size from .075" -3" diameters
300-500 sfpm
.0003"-.001" feed per revolution

I have drilled granite surface plates using these feeds and speeds

[RCaffin]

Hi tc26

Valuable info! Thank you.

Cheers
Roger

[tc26]

You are welcome.
Thank you

[emd68]

Hello Roger,

You could also try Wrisley Abrasives for diamond tooling.
Diamond Tools - Wrisley Abrasives - Diamond Tools - Wrisley Abrasives - Home

[mountaindew]

This might work in your case

In the past I have used diamond hole saw drills to make 2" holes in 3/8 glass. Using clean water and a clay dam around the area to be drilled. fill clay dam around the tool with water keeping the tool underwater at all time. chip removal was simple flooding over the dam with clean water. when it started to look like milk I poured more water and let it flood over the clay dam .

[RCaffin]

Hi emd68

References from customers are apreciated - thanks.

Cheers
Roger