AzB Silver Member
Silver Member
It is 100% caulking with a worn piece of chalk. As a cue repair guy I see this on 10 to 20% of the cues that come in for new tips. I educate the owner and it doesn't happen again.


AzB Silver Member
Silver Member
I have played the owner for about 6 mos now and I have never seen him grind the chalk into it . He never breaks with it either .


Hi Mom!
Gold Member
Silver Member
Its caused by using well used pieces of chalk and screwing the chalk into the ferrule. The top edge of the abrasive chalk sands the ferrule until it has a groove in it.
Yup. Standard issue chalk ground ferule. Earl who? Strickland? Just checking. If you use the edge of anew or worn piece of chalk and paint it onto the tip you get better results, less dust and no ferule damage.
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