The knives, in Killing Floor 2, are basic melee weapons, available to the player based on their selected perk, and all count to their respective perks progress. There are currently four variations available to players: the lawnmower blade, KF-BAR, the machete, and the scalpel, for the berserker, commando, support, field medic respectively. The controls for each of them are:
- Primary - fast slash attack, Hold Primary for combo attack.
- Secondary - heavy slash attack.
- Alt - block/parry.
“Don't go feeling all special just because we gave you the biggest knife.” —Item description
The lawnmower blade is the berserker variant.
“Horzine's version of the classic commando knife.” —Item description
The KF-BAR is the commando variant.
“Yes, it is actually a lawn-mower blade. Enjoy it!” —Item description
The machete is the support variant.
“It's a scalpel. You're a medic, so we're assuming that we do not need to explain to you how to use it.” —Item description
The scalpel is the field medic variant. It has neon blue glowing parts like all other field medic equipment.