Since we can only have 10 photos, understandably, I will submit two tools today so please also look at the Bee Mite Vaporizer tool that I built this tap for. Long story short I needed a 10x1MM tap for a Glow Plug in an aluminum block for a Varroa Mite vaporizer that I was building. Here is how I did it when now could be found close by. I bought 2 10x1x40MM Hex headed bolts when the Hardware Store did not have the tap I needed. I used an old trick to make a single flute tap from a bolt
Quickly setting the bolt in the Mill/drill vise, I cut a groove down right hand side, The raised letters on the head were causing me trouble so I went to the lathe and machined the head flat and while there also tapered the thread end.
Back to the mill and deepened the groove, changing the angle so that I had more than a 90 degree opening for a flute.
I filed off the secondary edge of the groove and then using a 17MM ratchet wrench started the thread. It took a mild blow on the tap head with a mallet for the tap to catch well enough to start the thread. We went right down the whole 5/8 of an inch that I needed. The threads looked and worked well. This is an easy way out of a bind that can stop a project. Grade 8 bolts can be used for a couple of threaded holes in mild steel.
Hope this will help some of you get your project done.
Post your reply!
Join 41,949 of us and get our 173 Must Read Homemade Tools eBook free.
There are currently 1 users browsing this thread. (0 members and 1 guests)