The liner-locking combination tool was introduced in 2011 as part of the Wenger Titanium Series.
It includes 7mm (M4), 10mm (M6), and 13mm (M8) wrenches; a large 14mm screwdriver, on the spine; and a one-hand-opening combined serrated/straight-edged knife blade. The hexagonal wrenches are designed to adjust the nuts on a mountaineer's climbing ice-axe. For increased strength this tool is 50% thicker than the standard tool blades.
This tool and its corresponding SAKs were designed in conjunction between the Swiss mountaineer Ueli Steck and Wenger. It only appears in this series.