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This article is about the Engineer's stock melee weapon. For other wrenches, see Wrench (disambiguation).
I'm gonna beat you like a rented mule, boy!
The Engineer

The Wrench, also known as the Uhlman Build-Matic Wrench, is the default melee weapon for the Engineer. It is similar in appearance to a monkey wrench.

The primary function of this weapon is the upgrade and repair of Dispensers, Teleporters, and Sentry Guns. In addition, while placed buildings will construct themselves, striking them with the Wrench will cause them to build twice as fast. This effect stacks with each additional Engineer striking the building with their Wrench during construction. It can also be used to remove a Spy's Sappers from buildings. The Wrench's critical hit animation is a swing from right to left.

Switching from this weapon to a different melee weapon will destroy all existing buildings.

Damage and function times

See also: Damage
Damage and function times
Damage type Melee
Ranged or Melee damage? Melee
Base damage 100% 65
Point blank 55-75
Critical 195
Mini-crit 75-101
Damage repaired per hit 105
Upgrade amount per hit 25
Metal cost per repairing hit 1 + damage / 5
Metal cost for reloading ammo 1 / bullet
2 / rocket salvo
Function times
Attack interval 0.8 s
Values are approximate and determined by community testing.


Strange variant

Related achievements

Leaderboard class engineer.png Engineer

Built to Last
Built to Last
Help a single building tank over 2000 damage without being destroyed.

Circle the Wagons
Circle the Wagons
Repair 50,000 damage to friendly buildings constructed by other players.

Fistful of Sappers
Fistful of Sappers
Destroy 25 sappers on buildings built by other team members.

Get Along!
Get Along!
Manage to get to, and then remove, a sapper placed on your building while you were several meters away.

Doc, Stock, and Barrel
Doc, Stock, and Barrel
Repair a sentry gun under fire while being healed by a Medic.
Land Grab
Land Grab
Help a teammate construct a building.

Quick Draw
Quick Draw
Kill a Spy and two sappers within 10 seconds.

Silent Pardner
Silent Pardner
Upgrade 50 buildings built by other team members.

The Wrench Connection
The Wrench Connection
Kill a disguised spy with your Wrench.

Rio Grind
Rio Grind
Perform 50 repairs and/or reloads on a Sentry gun being Wrangled by another Engineer.

Update history

April 29, 2008 Patch (Gold Rush Update)
  • Added swing animations.

February 3, 2011 Patch

  • Engineers who hit teammate Sentry Guns with their Wrench now get kill assists from that Sentry Gun.

February 14, 2011 Patch

  • Fixed melee attacks not destroying remote detonation pipes (Stickybombs).

August 18, 2011 Patch

  • [Undocumented] Added Strange variant.

December 15, 2011 Patch (Australian Christmas 2011)

December 19, 2011 Patch

  • Festive Wrenchs can now be gifted.

January 11, 2012 Patch

  • Fixed some cases where strange wrenches would fail to correctly count kills.

August 15, 2012 Patch (Mann vs. Machine Update)

  • [Undocumented] Added Silver and Gold Botkiller variants.

October 9, 2012 Patch

  • Added Rust, Blood, Carbonado, and Diamond Botkiller variants.

December 20, 2012 Patch (Mecha Update)

  • Added Silver and Gold Botkiller Mk. II variants.

February 15, 2013 Patch

  • Fixed the Botkiller Wrench using the RED team arms skin while on the BLU team.

November 21, 2013 Patch (Two Cities Update)

June 18, 2014 Patch (Love & War Update)

  • Converted the Wrench models to use the c_models system.

December 8, 2014 Patch (End of the Line Update)

  • [Undocumented] Added a description to the Wrench.


  • Renamed Wrenches do not show the description.
  • With flipped viewmodels enabled, this weapon's robot head, of all types, will have its normals inverted, making it appear to be see through.


  • Because damage dealt by Sentry Guns increases an Engineer's critical hit chance, an Engineer can earn a high crit rate without dealing much damage himself. This, combined with the crit rate on melee weapons ranging from 15% to 65%, leads to misconceptions about the Wrench's "unnaturally high" crit rate.
  • The in-game model for the Wrench is based on the original monkey wrench designed by the Coes company in the 19th century.


See also