What diameter hole you need?
edit...
just seen..
have the perfect thing... 2 secs
edit 2
this bit... Tungsten Carbide Tipped 20mm hole saw.
https://www.ebay.co.uk/itm/152133521208
May need to pilot it with the 5.5mm bosh:
http://www.powertoolworld.co.uk/bosc...FdYYGwod9SADEA
drilled like this to keep permanently lubed and cool.
drill slow
Last edited by MattLampitt; 12th May 2017 at 20:22.
Oh dear god! Hold the drill steady! Who else cringed watching the glass get scratched by a wandering drill?Originally Posted by MattLampitt
Remember when drilling anything it's about speeds, when turning on lathe or milling its speeds and feeds.
Also use some cutting fluid as apposed to water with metal, as the oils lubricate the drill and stop the metal sticking to the tips of the drill flutes.
Last edited by Roboteernat; 15th May 2017 at 10:11.
Posting Permissions
Reply With Quote
Bookmarks