What is the difference between the model number CMHT77620 and CMHT77621? Wilson October 03, 2020 20:00 The unit CMHT77620 should have a hole that is open for the pencil to slide through.The cmht77621 that is meant to stay attached to the unit as a marking pin you use to push into the drywall to make a mark. Please see attached pictures. Comments 0 comments Please sign in to leave a comment.
Comments
0 comments
Please sign in to leave a comment.