I was only getting one of the two hooks of a brand new, $70 hammer to engage a freshly cut 1911 sear. Knowing that the sear was done well, I knew I had to correct the hammer on the mill. Full disclosure, I was being a bit lazy and was hoping to get lucky. I have only had ONE hammer work right off the bat and not need corrected to some extent. The first picture shows you how the two hooks are begging to be cut at different rates.
It took a few passes taking .0002 to .0004 off at a time to get both hooks clean and cut to 90-degrees.
After the hammer hooks were corrected, I began to get even hook engagement on the sear.
It took a few passes taking .0002 to .0004 off at a time to get both hooks clean and cut to 90-degrees.
After the hammer hooks were corrected, I began to get even hook engagement on the sear.