Trowel

A tool used to apply or smooth material, or force it into joints.

For example, a bricklayer's trowel is a flat-bladed tool with a handle and flat metal blade, used for spreading,levelling, or shaping substances such as cement, mortar or plaster, as well as for breaking bricks to shape them. A flooring trowel has one rectangular end and one pointed end, made to fit corners.