Drilling an undersized hole for front sight.

[Hawk54]

I have a pistol kit that requires I drill an undersized hole in the barrel for the front sight. The shaft on brass front sight is 7/64's. Should I drill a 6/64? Is that undersized enough to hold the sight firmly after it is tapped into place? Don't want to go to big.

 

[Metalshaper]

2.6 mm	0.1024	2.6000
#37	0.1040	2.6416
2.7 mm	0.1063	2.7000
#36	0.1065	2.7051
7/64 in	0.1094	2.7781
#35	0.1100	2.7940
2.8 mm	0.1102	2.8000

from a drill chart, looks like a #36 is close if you are wanting to swage it in?
use a 7/64 and red loc-tite and I think you'd be fine?? or the 7/64 and soft solder. ( as most drill bits drill a bit oversize for one reason or another )

 

[Hawk54]

2.6 mm	0.1024	2.6000
#37	0.1040	2.6416
2.7 mm	0.1063	2.7000
#36	0.1065	2.7051
7/64 in	0.1094	2.7781
#35	0.1100	2.7940
2.8 mm	0.1102	2.8000

from a drill chart, looks like a #36 is close if you are wanting to swage it in?
use a 7/64 and red loc-tite and I think you'd be fine?? or the 7/64 and soft solder. ( as most drill bits drill a bit oversize for one reason or another )

Thanks

 

[Old Hawkeye]

I concur with Metalshaper. Drill it 7/64ths & epoxy it in. Little dab will do ya!