Special shaped spanner / wrench to access the very tight oil filter housing under the inlet manifold found on many GM / Opel 4 cylinder engines.

Vauxhall and Opel cars with 2.0L / 2.2L petrol engines with A and Z engine codes.

Size: Bi-Hex 32mm. 
Drive: 1/2"

A Big time saver!

Models:

• Opel: Astra G / Astra H / Vectra B / Vectra C / VX220 / Zafira A / Zafira A / Omega B / Insignia
• Vauxhall: Signum 

OEM: KM-6150 / KM 6150