A wall chaser is a power tool used for cutting grooves in walls, primarily for embedding electrical wires, cables, or pipes.

Wall chasers can cut through hollow bricks, gypsum bricks, solid brick walls, and lightweight concrete blocks. The specific applicability depends on the machine model and blade type.

Key consumables include saw blades, carbon brushes, and dust collection accessories such as dust bags or vacuum attachments.

Most wall chasers are designed for straight cuts. To create curved grooves, multiple small straight cuts can be made first, followed by finishing with a smaller tool such as a cutter or chisel.

Vertical grooving should be done from top to bottom. Hold the switch handle with the right hand and place the left hand on the milling cover for guidance and stability. Once the cutter is inserted into the wall, pull the machine downward with both hands to create a straight groove. Proper handling is essential, and the guide rails on both sides of the milling cover indicate the cutting direction.

Horizontal grooving should be performed from right to left. Hold the right side of the milling cover handle with the right hand and push the machine to the left. The right arm should rest on the machine while pushing from below, and the left hand should grip the switch handle for control.

- Cleaning: regularly remove dust from the machine and wipe the surface with a soft cloth after each use.

- Lubrication: apply lubricant to sliding parts and bearings frequently to ensure smooth operation.

- Inspection: regularly check blade wear, component integrity, and electrical connections, replacing blades and worn parts as needed.

Wear a dust mask, safety goggles, and ear protection while operating the machine. After use, note that the cutting disc will continue spinning briefly. Be especially cautious around corners or sharp edges to prevent the tool from getting stuck or causing kickback.