The Makita SG1251J/1 Wall Chaser 125 mm is a powerful corded cutting tool engineered for fast and accurate chasing of channels in walls and floors for electrical conduit, plumbing pipework, ducting and cable management. Powered by a 110 V mains supply, this wall chaser features dual blades with adjustable cutting width and depth — making it ideal for site electricians, plumbers, HVAC installers and construction professionals needing reliable, heavy-duty performance.
125 mm Dual Cutting Blades — efficient cutting of wider chase channels
110 V Corded Power — continuous, dependable performance without batteries
Adjustable Cutting Width & Depth — flexible settings for different chase requirements
Dust Collection Port — connect to extraction for cleaner, safer operation
Ergonomic Handles — comfortable grip and better control
Durable Build Quality — designed to withstand regular site use
High Material Removal Rate — fast channel cutting in masonry and concrete
Product: Wall Chaser
Model / Product Code: SG1251J/1
Disc Diameter: 125 mm (dual blades)
Cutting Width: Adjustable per spec (verify exact range)
Cutting Depth: Adjustable per spec (verify exact range)
Power Source: 110 V mains powered, corded
Application: Chasing channels in concrete, brick and masonry
Cutting wall channels for electrical conduit
Creating grooves for plumbing pipework
Duct routing preparations
HVAC and cable installation routing
Site and renovation applications requiring fast wall cuts
Confirm mains voltage compatibility (110 V) before use
Always read and follow the operator’s manual and safety instructions
Wear appropriate PPE including eye protection, hearing protection, gloves and dust mask
Use correct cutting discs suited for wall chasing and the material
Keep bystanders clear of the work area
Connect dust extraction where possible to reduce airborne debris
Unplug before changing discs or performing maintenance
Store the tool in a dry, secure place when not in use
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