The Mares Multi Tool Pro is a handy combination of the most typical spanner and allen key sizes used in scuba diving. The tool has a rubberised handle for better grip and stainless steel tools for durability.

The tool includes 14, 17 and 19mm spanners (for hoses) and 4, 6 9 (for regulator blanking plugs) and 8mm allen keys (for tank inserts). A version of the tool is also available that has screwdrivers instead of allen keys