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Diy poor man's broach/blind broach

phaxtris

(Ryan)
Premium Member
Premium Member
A quick and dirty shop tool I made this evening for an upcoming project that requires a keyway in a blind hole (the reason it is so long)

I did a little you tube searching for a solution and made my own rendition for an old bolt, a 1/4-28 set screw and a small chunk of 1/4 hss.

The keyway I need to cut is actually 8mm, so it will take 2 passes, but it does go pretty quickly in aluminum, actually a lot quicker than expected


There is a short video of it in action on a piece of scrap for those that care to see.

IMG_20221016_193029_958.jpgIMG_20221016_195537_477.jpgIMG_20221016_204742_422.jpgIMG_20221016_204130_952.jpgIMG_20221016_203923_583.jpg

 
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