- Joined
- Jan 20, 2018
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- 5,666
The set-screw you have circled in your picture is too high to be they key (hold a collet next to the spindle). It is usually under the collar at the bottom of the spindle. I wouldn't be spending any time trying to replace it. When I owned my shop we would just remove them when they got damaged (which always happened sooner or later). I've been fighting a damaged key in my Kent mill since I got it. This discussion has motivated me to go out and remove it.
Under no circumstances would I consider pulling the spindle to replace the key.
Under no circumstances would I consider pulling the spindle to replace the key.