Adapter Plate Guide
How to tell the difference between TL1 and TL3 XXT Adapter Plates
Answer: Note that the carbide spheres on the top of the plate are in different positions. See illustrations, below:
TL1 Plate
This is a TL1 adapter plate. Note the side-by-side position of the two carbide spheres at the 12 o'clock position. This plate fits TL1 probe heads.

TL3 Plate
This is a TL3 adapter plate. Note the space between the two carbide spheres at the 12 o'clock position. This plate fits TL3 probe heads.

Have Questions?
Our styli experts are available to answer any of your questions
6:30am - 3:00pm PST, Monday through Friday.
Call: 1-949-457-1913
If you need assistance outside of our office hours, you can email sales@cmms.com.