A traditional bricklayers tool with a double point.

The hardened point is used for raking out weathered mortar joints and for digging
out in clay, shale, sand or chalk,

SAFETY TIP
Wear safety spectacles, or goggles, when hammering.
Never use hammers to strike hardened metal.
Strike squarely and avoid glancing blows.
Never strike with the side of a hammer.
Do not use a hammer with a loose or damaged head.
Always use the correct hammer for the job.