Monkey Wrench (4e Equipment)
From D&D Wiki
 Monkey Wrench
 Simple Melee Weapons
|Monkey Wrench||+3||1d8||Melee||25gp||6lb||Mace||Versatile, +2 to mechanical device skill checks|
This massive adjustable tool is made of solid metal and is just as effective a weapon as it is for loosening pipes or tightening bolts.