Hand Drilling

[Matt50971]

Hey everyone,

I don't have access to any machinery, so I was wondering If I could drill a larger transfer port hole with a hand drill. I have a heavy duty one and I saw somewhere that It can be done.

 

[jmmartinez573]

I did it with my Prod transfer port. I grabbed the transfer port with some locking pliers and used rubber as a cushion so I wouldn't crush or scratch it. Then I drilled it 1 drill bit size at a time till I got the hole I wanted.

 

[Skip-in-WV]

You can replace it with a piece of refrigerator water tubing. Use a sharp knife to cut it. Check your results. Adjust length if necesary. That way your TP remains intact.

 

[ackuric]

I personally do it but note being perfectly concentric in every way is not a common by product of hand drilled work.

 

[Matt50971]

I did it with my Prod transfer port. I grabbed the transfer port with some locking pliers and used rubber as a cushion so I wouldn't crush or scratch it. Then I drilled it 1 drill bit size at a time till I got the hole I wanted.

good point of going up by 1 drill bit size. I'm trying to get my marauder to .25 in because I order an entire .357 upper from Jefferson State Air Rifles. I'm producing around 90 fpe with my .25.

 

[Matt50971]

I did it with my Prod transfer port. I grabbed the transfer port with some locking pliers and used rubber as a cushion so I wouldn't crush or scratch it. Then I drilled it 1 drill bit size at a time till I got the hole I wanted.

good point of going up by 1 drill bit size. I'm trying to get my marauder to .25 in because I order an entire .357 upper from Jefferson State Air Rifles. I'm producing around 90 fpe with my .25.

 

[ackuric]

If I were to build a .357" I would want it ported to at least .3"...JMO, if you're after power that is...a .25 porting is better for .25+.30 cal. JMO...

 

[steve-l]

Can you drill the port with a hand drill? Of course you can, but do you really want to? How much is your gun worth? I suggest that in this instance and in point, everywhere else as well, there is no substitute for the correct tool. Buying the correct tool is less expensive than trashing the rifle and if you will never have further use for the tool, you can bring the job to some one that does have the tools and skill. I am certain it is cheaper than the gun.

 

[Dairyboy]

I have drill when I drill out valves and TP holes in the barrel. Take it slow and steady is all that's necessary