Quote Originally Posted by matfew View Post
Why not use hole saws. Take a lot less material out and be much quicker with less load on the drill.

Cutting a 25mm hole with a 13mm chuck drill is a huge ask. For user and drill lol

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Depends on the accuracy of the hole I suppose. If you want a concentric hole, use a drill, if you are not fussed about the eccentricity or even oversize, use a hole saw. Thats my personal experience.