CathyInBlue
Grandmaster
Sure, if you had an incredibly steady hand, but even small, benchtop drill presses are incredibly affordable and entirely usable for 80% lower finishing. Finishing other types of receivers? Dunno.Would you really use a hand drill to complete an 80% lower?
As I read 2015-1, even if he comes over to your place and uses your workshop with your tools in it, it's kosher, provided you do not lay hands on the tools or reciever during the process (because then you'd be the one doing the "manufacturing"), or take payment (even promises of trading favours) for the use of your workshop/tools (because then you'd be a "business", in the ATF's estimation). Do neither, and even though it's happening at your place, you're not a firearm manufacturer nor a business, and the GCA doesn't apply to the acts.if he borrows it from you and does the work at his house, then no.