In this icon is a wrench and a screwdriver. The screwdriver is laid atop of the wrench in a criss-cross manner to convey the idea of maintenance.
This Maintenance icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.