TinkerJohn
Active Member
As usual, I seem to get some oddball stuff and once again Im stumped! :-\
A few years ago I got an Asian drill chuck with a MT3 taper mount. The darn thing was very accurate and I need to change it to a MT2 taper mount.
The problem is I cant figure out the taper for the chuck. Ive tried a JT3, JT33 and JT6 and none of them worked. The best I can measure the chuck taper is .692 on the big end and .643 on the small end with a taper length of 1 inch and that does not match to any taper I know of. Do the Chinese use a taper totally different?
Ive used several other Chinese chucks and theyve had the regular JT. Anyone got any ideas what this beast takes? I doubt if youll be able to tell much but perhaps the pictures will help someone ID the chuck.
Thanks in advance for the help.
TinkerJohn
www.TinkerJohn.com
A few years ago I got an Asian drill chuck with a MT3 taper mount. The darn thing was very accurate and I need to change it to a MT2 taper mount.
The problem is I cant figure out the taper for the chuck. Ive tried a JT3, JT33 and JT6 and none of them worked. The best I can measure the chuck taper is .692 on the big end and .643 on the small end with a taper length of 1 inch and that does not match to any taper I know of. Do the Chinese use a taper totally different?
Ive used several other Chinese chucks and theyve had the regular JT. Anyone got any ideas what this beast takes? I doubt if youll be able to tell much but perhaps the pictures will help someone ID the chuck.
Thanks in advance for the help.
TinkerJohn
www.TinkerJohn.com