This is a drawing of some sort of tool or object. On the top right there is a U-shaped that appears to be able to connect but it's not all the way connected and at the bottom left is the base.
This is a Micrometer icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.