Twist Drills, sharpened for use in hard or brittle materials.

How to grind a drill so that it can be used to drill holes accurately and safely, in hard plastic or similar materials.

[@prince_rota]

Its always a joy watching your videos, sir. Thank you and stay well.

[@adrianjagmag]

Glad to see you're back to making videos :)

[@videohq1181]

now I feel like I need to buy a grinding wheel 😎