The Engineer's Primary Weapon Is The Shotgun,The Same Shotgun Is Shared With Heavy,Pyro And Soldier,The Standard Shotgun Has No Buffs,Nor Any Penalties,Also Dealing A Standard Amount Of Damage.

The Engineer's Secondary Weapon Is The Pistol,The Same Pistol Is Shared With Scout.The Pistol Deals A Standard Amount Of Damage,And A High Amount Of Total Ammo,And A Very Fast Firing Speed & Reloading Speed.

The Engineer's Melee Weapon Is The Standard Wrench,This Wrench Deals Medium Damage And Can Help Repair And Upgrade Sentries,Teleporters Or Dispensers.

The 3rd Best Melee Is The Australium Wrench (Description Unknown)

Tell me what you think is the 2nd best engineer's melee weapon,I'll add one of those comments.