It is a manual device you can use to punch holes on any leather surface. The leather hole punch features a cylindrical steel tip with a sharp, knife-like edge that easily cuts into the leather to ...

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.

[Ticktock34] shows off his skills on a WWII vintage manual lathe with a photo album of his .75 caliber miniature black powder cannon build. What starts as a 3″ diameter actuator from a front end ...