Captdave
Titanium
- Joined
- Sep 24, 2006
- Location
- Atlanta, GA
We have a bar job that we have been running for years that require tapping M10x1.5 (OSG 3 flt spiral taps) in 12L14 1." deep in a 1.3" deep 9mm hole with a .060" chamfer. Have been using the same Mari T/C ER 25 tap holder for the last 2-3 years and now my son says he having trouble with it its either tapping to .5" deep or going to the bottom of the hole and breaking the tap.
I'm out of the country and trying to help him trouble shoot the problem via email so he can get the parts done. He's still learning but generally has no problems setting up and running repeat jobs.
Here is what I know so far; he says the holder looks fine but there is a small amount of movement or dead spot ( between T an C ) of about .050" which I don't think should be a problem. Called Mari Tech support and they recommended removing the front spring and ball bearings to convert it to a tension only holder.
Any other advise or suggestions I can pass on?
I'm out of the country and trying to help him trouble shoot the problem via email so he can get the parts done. He's still learning but generally has no problems setting up and running repeat jobs.
Here is what I know so far; he says the holder looks fine but there is a small amount of movement or dead spot ( between T an C ) of about .050" which I don't think should be a problem. Called Mari Tech support and they recommended removing the front spring and ball bearings to convert it to a tension only holder.
Any other advise or suggestions I can pass on?