glue for hammers

[Ron Nossaman]

> If a good knurler is used and the shanks are properly knurled, there is 
> no problem in dry fitting them in such a way that they can be aligned 
> fore and aft etc. Then the expansion of the shank makes a tight fit to 
> the hammer bore hole, as you say.

Yes, pulling the hammer back to the drill angle and away from 
where you had it aligned. At least that was my experience.


> The problem is that few people own a good knurler, and that they are not 
> available through the big box suppliers.
> 
> Jurgen Goering

I think the problem is that there isn't any real problem with 
reaming hammers to an adjustable fit bore, and letting the 
glue hold them, unless you believe you can hear the 
difference. I've seen a number of loose hammers through the 
years and in every case it was a result of inadequate glue, 
not improper fit. With reasonable care in fitting (not super 
floppy sloppy) it just isn't a problem in the real world. I 
have a good quality shank knurler on the door frame above the 
pencil sharpener. I use it for upright shanks, but not for 
grands. Yes, I tried it on grands, but found better speed, 
controllability, and precision from just taper reaming the 
hammers for a slip fit with some adjustability. If the knurler 
works better for you on grands, great. Knurl away, but I still 
say it's not necessary to a good hammer hanging job.
Ron N