Wait - you’ve got to go to Lowes’ to get bolt cutters, so you can snip off the end of an allen wrench because you’re too lazy to go to Lowes’ to buy a hex set?
Are you sure you’re not one of my children from the future?
No, silly! Borrow them from your neighbor and never return them.
He is - that’s his neighbor Mr. Lowe.
Actually, I have hex sets and socket/hex sets coming out my ears.
Makes it darn tough to buy hats.
Is there a Trump brand hex driver?
Yes, T-handles are definitely the easiest way to go if you have the clearance.
Otherwise, you can buy a full hex insert bit set for $10.
If you’re gonna try to cut a hardened steel allen key I’d suggest and angle grinder.
You may be able to snap it easier if you put it in a vice, score it with a hacksaw and then use pliers/vice grips to break it off. Unfortunately, if you bend it at all, it may be useless in a drill chuck.
Another tip - buy some Loctite thread locker to keep those screws form coming loose all the time.
Really!?
A set of ball-end hex drivers can also be very useful - like this - I wouldn’t necessarily recommend them for assembling every fastener, but they come in super handy for those cases where your only access to the screw is not perfectly axial to it.
Ok… nice find.:o
Pic-Quick sells multi bit hex screw drivers in inch and metric versions. The bits can also be used in a drill. Good quality and very handy screw drivers.
I bought a drill bit set for maybe $10-15 that comes with a hundred or so bits, including dozens of allen wrench bits.
So I’d just use one of those allen wrench bits and a drill.
Wait, they’re top secret? On a need-to-drill basis only? 
My dad was a distributor for Pic-Quic tools. Their multi-bit screwdrivers are extremely handy (especially the automotive one) but you will void the life-time warranty if you use them in a drill or any power tool.
I have hammered flat a Allen wrench and used it in a drill, it wasn’t perfectly straight but worked fine for it’s purpose.
The real question is, why are L-shaped hex keys still a thing? We all need to take a stand and refuse to use or buy these awkward and anti-ergonomic hellish things! Who’s with me??
Because it’s a cheap and easy way to make a usable tool, which even has multiple options for different levels of required torque.