I believe you have the latest and greatest.... And it should be a CarveTite. The Standard for a few years now.
Favorite Saying.... "It's ALL About the Brass Roller"..... And "Use MASKING TAPE" for board skipping in the X or breaking bits.
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If you are using a t handle hex wrench to loosen the screw to remove the bit, you have a carvetight. If you have a quick chaange design, where the bit is in a holder that you snap into the spindle and use a wedge type tool to remove that is the older style spindle design.
Yep..it's a T handle! Thanks!!!!!