— The Engineer on thrilling robotic prostheses
The Arm Blender, also known as Organ Grinder, is a kill taunt that activates upon taunting with the Gunslinger equipped. The Engineer pulls a rip-cord from his mechanical prosthetic, revving the hand of his Gunslinger up to vicious speeds, after which he thrusts it forward, gibbing any enemy player slow, unaware, or simply unfortunate enough to be within reach.
The taunt inflicts several 1-damage hits and stuns the victim during the initial contact with the hand. Upon the Engineer withdrawing his robotic appendage near the end of the taunt, a final blow of 500 damage will be inflicted, instantly killing any class that is not invulnerable at the time.
The stun effect of the taunt works on both ÜberCharged enemies and enemies under the effects of Bonk! Atomic Punch, but will not kill them.
This taunt can be aimed manually depending on the direction the player was aiming at the start. This can allow players directly above or below the Engineer to be killed by the taunt if they were aimed at previously. The range at which the taunt will kill is 128 Hammer Units, past which it has no effect.
As with most kill taunts, this taunt can be used to kill enemy players during humiliation and stalemates.
Damage and function times
|Damage and function times
|Ranged or Melee damage?
||1 (x14) + 500
| Medium range
| Long range
||1 (x14) + 675
||4.7 s 
|Values are approximate and determined by community testing.
July 8, 2010 Patch (Engineer Update)
- The Arm Blender taunt was added to the game.
- If an enemy is killed by the hand's spinning before it is withdrawn, they will turn into a ragdoll instead.