jermfab
Cast Iron
- Joined
- Jul 25, 2013
- Location
- atlanta, ga
I generally keep my most common tools in holders, preset and ready to use on the lathe headstock. I also keep a couple other tool holders open for use in a drawer. Whenever possible I use 3/4” shank tools, but today I tried to mount a 1/2” shank tool in a Dorian D30-BXA-1 holder. Set screws jammed tight before hitting the tool. No problem, I’ll just chase them with a tap and get them to snug against the tool shank, right? Wrong... not sure what sort of unobtanium metal or heat treat Dorian uses on their holders, but I burned up a tap per hole. Broke the first tap clean, I’ll take the blame on that. But destroyed three more taps, ostensibly chasing an already tapped hole!! The tool holder literally pulled the cutting surfaces off of two taps and you can see the wear starting on the third. I can now get my set screws to seat and hold a tool, but it took some doing. I’ve never encountered this before in something that shouldn’t be much more than rather hard steel...
Hopefully I won’t encounter this again, but wondering what the PM community’s thoughts are.
Jeremy
Hopefully I won’t encounter this again, but wondering what the PM community’s thoughts are.
Jeremy