what all home constructors should know about drill bits
#1
Here is a link to a youtube video by Adam Savage (Yes one of the Myth Buster blokes) about all the differing styles of drill bits and why we should consider using other drill bit types than what you may have used in the past

All About Drill bits

Over the last 2 years I have been a convert of the STEP DRILL for work on sheet metal as it actually cuts a round hole unlike the traditional twist bit..   j

happy viewing
Peter Sumner, vk5pj

You have enemies? Good. That means you've stood up for something, sometime in your life.
- Winston Churchill
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#2
Good video.

Our local Mens Shed has the Forstner bits and the do make a nice hole.

Likewise with Step drills - been using those for years.
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