Hmmm, a word scramble. Let's see.
1- gear
2 - motor
3 - hammer
4 - pulley
5 - exhaust
6 - engineering
7 - mechanical
8 - battery
9 - electric
10 - automatic
11 - grease
12 - wrench
13 - chainsaw
14 - mallet
15 - tool box
16 - metal
17 - breaks
18 - chassi(s)
19 - rust
20 - electrode manometry