Hey all, just picked up a Mitutoyo 513-406 test indicator off eBay, and while it seems to be in good condition, I'm a bit puzzled on the stem that is attached to the dovetail. It seems impossible to remove. Came with 2 stems, an 8mm and a 4mm. The 8mm one is like I expected, just a screw into the dovetail stem holder, slide it over the dovetail, tighten it down, off you go.
The 4mm was on it when it arrived. It was way tighter than I expected, but I finally got the stem to unscrew from the holder. But there is still a ... post (?) buried in the dovetail stem holder, and the stem itself is more like a collet in that the threaded part is actually split in 2 places. Anyway, with the stem removed, the stem holder remains firmly attached to the indicator.
As I gradually build up my basic set of machine tool paraphernalia, this is my first test indicator, so I would not be at all surprised to learn that I'm missing something! So, how am I supposed to get it off? The Mitutoyo drawings suggest it is not a permanent part.
Here it is as it arrived...
Thanks for any help!
The 4mm was on it when it arrived. It was way tighter than I expected, but I finally got the stem to unscrew from the holder. But there is still a ... post (?) buried in the dovetail stem holder, and the stem itself is more like a collet in that the threaded part is actually split in 2 places. Anyway, with the stem removed, the stem holder remains firmly attached to the indicator.
As I gradually build up my basic set of machine tool paraphernalia, this is my first test indicator, so I would not be at all surprised to learn that I'm missing something! So, how am I supposed to get it off? The Mitutoyo drawings suggest it is not a permanent part.
Here it is as it arrived...
Thanks for any help!
