What is the diameter of the tips themselves on the CMHT47412? Support July 07, 2023 16:10 Updated Please see below: Internal range 3/8 inch to 2 inches / External range 1/4 inch to 2 inches Related articles What is the warranty for my CRAFTSMAN tool? CMHT47412 Tips diameter Where can I find a service center to repair my tools? How can I get in contact with someone for assistance? CMHT68017 Bits part number and sizes Comments 0 comments Please sign in to leave a comment.