I say try because in a battle between a jet engine with the power to push 400 tons of steel into the sky VS a drone I'm going to put my money on the jet engine lasting long enough for them to turn around and land again.
You might want to rethink that after being reminded of jet airliners being brought down by birds - not an ounce of metallic content, just a few pounds of meat and soft lightweight bones - or the 747 which almost crashed after all four engines failed from ingesting some ash. (Fortunately, they happened to be relatively near an airport and were high enough to glide for over a hundred miles, which bought them just enough time to restart an engine while they had been preparing to ditch in the ocean, buying them enough time to limp to the nearest runway - although all four engines were damaged beyond repair.)
For that matter, the French Concorde which crashed in 2000 was destroyed by a single thin strip of metal, 17 inches long and just over an inch wide, less than four ounces: essentially, a slightly larger than average metal ruler. It didn't even go into an engine, it just burst a tire - violently enough that the ten pound lump of rubber ruptured the wing and number 5 fuel tank, causing the crash which killed everyone on board.
That was a single 4 oz strip of metal hitting a tire. A pound of bolts or nails will destroy the engine - or a metal drone engine that size.