Re: Drilling Tufnol
On the basis that 'a picture paints a thousand words', I've just drilled a 32mm (1.25") diameter hole in a 12mm thick piece of Tufnol with a Forstner bit. It took just 3 minutes at 680 RPM in a pillar drill with no lubrication - no dramas.
Hope that helps.
__________________
David.
BVWS Member.
G-QRP Club member 1339.
|