shepherm
Active Member
So one of my exhaust studs on my Charger was broken and didn't have much luck with Kroil, welding, or left hand bits. So next I want to drill it out to see if I could re-tap the hole. I knew I wanted some type of jig to hold the bit straight and centered. Looking back I should have start with one of these before trying the left hand bit.
So I designed and printed a few different ones with the polit holes sized for a few end mills I hand. I started with a small end mill and worked up to a 5/16. Worked much better than I expected and centered the hole perfectly. If I was doing this often I would make from metal and a mill, but they were handy for a one time use tool.
So I designed and printed a few different ones with the polit holes sized for a few end mills I hand. I started with a small end mill and worked up to a 5/16. Worked much better than I expected and centered the hole perfectly. If I was doing this often I would make from metal and a mill, but they were handy for a one time use tool.