2,491. Slaughtering With Unusual Knives

Hilchos Shechita 1:17

If a knife goes down and up like a snake but is unblemished, one may slaughter with it even at the outset. If the edge of a knife is smooth but not sharp, one may slaughter with it as it’s unblemished. One may have to pass the knife back and forth all day long to perform the slaughter but it’s still valid.

Hilchos Shechita 1:18

If a knife has been sharpened but the blade isn’t smooth – rather, it’s like touching the end of an ear of grain that gets tangled on the finger – one may nevertheless slaughter with it since it’s unblemished.