Cutting-edge technology?

Usage examples of razorblades.

They feel like a red-hot cannonball full of electricity was going through them real slow, and just turning round and round, with poisoned razorblades sticking out of it.

Trucks would deliver great quantities of razorblades or suntan lotion, but there would be no bread or meat.

But most such writers seem to be endlessly rewriting Forbidden Planet, with razorblades and superfluous sunglasses-and they always seem to assume that no Morbius could ever win his battle.

But let Remo Williams pop a snotty dune store floorwalker in his acned cauliflower nose, and Smitty would be on Remo's case with razorblades for words.