The fact that this power saw is cordless makes it very easy to bring with you. The saw can cut through 120 millimetres of wood and would surely make a good addition to your toolbox
From Data Powertools
HiKOKI CR18DBL 18V Brushless Reciprocating Saw Body Only
ITS
Hikoki CR18DBLJ4Z CR18DBL 18V Brushless Reciprocating Saw - Body - 737499