Alligator Saw Blades
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About Alligator Saw Blades
Alligator saw blades are specialised cutting accessories designed for tandem saws, featuring two parallel blades that work in opposition to deliver clean, precise cuts with minimal vibration. This dual-blade scissor action makes them ideal for cutting aerated concrete, Poroton blocks, building blocks, timber, plywood, chipboard and MDF. MyToolShed.co.uk stocks an extensive range from leading manufacturers including DeWalt, Bosch Professional and Stanley, with both TCT (Tungsten Carbide Tipped) blades for masonry applications and HSS (High-Speed Steel) blades for wood-based materials.
Available in multiple lengths including 275mm, 295mm, 425mm and 430mm, these blades cater to different cutting depths and application requirements across UK construction sites. Whether cutting Class 12 or Class 20 Poroton blocks, hardwood timber or engineered wood products, the right alligator saw blade ensures superior cutting performance whilst minimising operator fatigue during extended use.
Applications
- Bricklayers and Blocklayers: Cutting Poroton blocks, gas beton and aerated concrete to size on construction sites
- Carpenters and Joiners: Precise cuts in hardwood, softwood, plywood and engineered wood products
- General Builders: Mixed material cutting during renovation, extension and new-build projects
- Groundworkers: Cutting building materials during foundation and substructure work
- Roofing Contractors: Trimming timber rafters, plywood and structural components
- Shopfitters: Cutting MDF, chipboard and composite materials for retail installations
- DIY Enthusiasts: Home extension, garden wall and renovation projects requiring precise material cutting
Choosing The Right Alligator Saw Blades
Material Compatibility: Match the blade type to your cutting material. TCT blades are essential for masonry including Poroton blocks and gas beton, whilst HSS blades suit timber, plywood and chipboard. Using the wrong blade type results in poor performance and rapid wear.
Blade Length: Select appropriate length for your cutting depth. Choose 275mm for shallower cuts, 295mm for standard applications, or 425-430mm for deeper cutting tasks. Verify your alligator saw accepts your chosen blade length.
Material Class: For masonry cutting, consider the specific material class. Class 12 and Class 20 Poroton blocks have different densities requiring appropriately specified TCT blades for optimal cutting efficiency.
Cutting Finish: HSS blades are available in fine and rough cutting configurations. Fine-cutting blades produce smoother edges ideal for visible timber work, whilst rough-cutting blades remove material more aggressively for structural applications.
Brand Compatibility: MyToolShed.co.uk stocks blades from DeWalt, Bosch Professional and Stanley. Always verify compatibility with your specific tool model, particularly DeWalt blades for DeWalt alligator saws.
Safety Information
Always wear appropriate PPE including safety glasses, hearing protection, dust masks rated for the material being cut, and suitable work gloves. Inspect blades before each use for damage including cracked or missing teeth, bent sections or excessive wear. When cutting masonry materials, implement appropriate dust control measures in accordance with COSHH regulations. Disconnect 240v power tools from the mains supply before changing blades, and store blades safely when not in use to prevent accidental contact with sharp teeth.
Frequently Asked Questions
What's the difference between TCT and HSS alligator saw blades?
TCT (Tungsten Carbide Tipped) blades feature extremely hard carbide teeth designed for cutting abrasive masonry materials like Poroton blocks and aerated concrete. HSS (High-Speed Steel) blades are manufactured from hardened steel specifically for cutting wood, plywood and chipboard. Using the correct blade type for your material is essential for optimal performance and blade longevity.
What blade length do I need for cutting standard building blocks?
For cutting standard UK building blocks (typically 100mm thick), a 275mm or 295mm TCT blade provides adequate cutting depth. For thicker blocks or cavity wall construction requiring deeper cuts, consider 425mm or 430mm blades. Remember that effective cutting depth is slightly less than the blade length.
Why are tandem blades better than standard reciprocating saw blades?
Alligator or tandem saw blades work in pairs with opposing motion, creating a scissor-like cutting action that significantly reduces vibration compared to standard single-blade reciprocating saws. This results in cleaner, more accurate cuts with less operator fatigue and prevents blade deflection when cutting thicker materials.