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How does a mortar rake work?

Shop for Mortar Rakes

Mortar rakes come in either a gritted or fluted design Mortar rakes will have either a gritted or a fluted design.
mortar joint Both are designed to remove mortar from between bricks.
action of mortar raking When attached to a power tool, the mortar rake rotates at a high speed and grinds (gritted design) or cuts (fluted design) away at the mortar.
The granules on the sides of a gritted mortar rake grind down the mortar scraping it away from further surrounding mortar. It is important to remove the tool from between the brickwork often - this will prevent too much debris building up around the tool and keep it from overheating.

Gritted design

The granules on the sides of a gritted mortar rake grind down the mortar, scraping it away from the brickwork leaving a clean surface to be repointed.

mortar rake on corner

Fluted design

With a fluted mortar rake, the rotating action means the dust and debris is channelled along the flutes and away from the brickwork.

The blades on the side of the tool, that make up the flutes, cut through the mortar as the tool spins. The flutes are designed as pathways for the mortar debris to pass through. The blades on the side of the tool, that make up the flutes, cut through the mortar as the tool spins. The flutes are designed as pathways for the mortar debris to pass through.
The amount of times you will have to take the mortar rake out of the mortar will depend on the type of mortar you are removing!