The Family Handyman on MSN13d
10 Incredible Drill Hacks You Need to Know
The variable speed of your drill means you won’t damage any fine ... Some materials are soft enough that you can use a nail ...
Hackaday5y
Punch Those Hole-Drilling Blues Away With A Homebrew Punching Tool
With the fate of repetitive motion injury looming due to the need to drill 1,200 holes, [bitluni] took matters into his own hands and built this nifty DIY hole punch for light-gauge sheet metal.