Trend
Trend 165mm x 20mm x 48T Aluminium/Plastic Circular Saw Blade
$45.90Unit price /UnavailableIn stock
Trend Metal & Plastic Saw Blades for Controlled Cutting
Trend Metal & Plastic circular saw blades are designed for materials that can quickly punish a standard timber blade. Aluminium, non-ferrous profiles, uPVC, acrylics and many plastics require tooth geometry that resists grabbing, reduces chipping, and limits heat build-up.
For non-ferrous metals and tougher plastics, blade design is critical. Tooth forms commonly used for these materials prioritise durability at the cutting edge and controlled chip formation, which helps reduce burrs on aluminium and minimises cracking or breakout on brittle plastics. A steady cut with consistent feed is typically the goal: too slow can generate heat and melting, while too fast can increase chattering, edge fracture and roughness.
Workholding and support matter just as much as blade choice. Secure clamping reduces vibration (a major cause of poor finish on metal and plastics), while backing boards can help minimise breakout on the exit side of plastics. On aluminium, managing swarf and keeping the work stable helps produce a cleaner cut and reduces the chance of the blade snatching the material.
FAQs
What materials are “metal & plastics” saw blades designed to cut?
They’re typically intended for non-ferrous metals (such as aluminium) and a range of plastics including uPVC and many sheet plastics. Always check the blade’s intended applications and your saw’s suitability before cutting unfamiliar materials.
Why shouldn’t I use a timber blade for aluminium or plastics?
Timber blades are optimised for cutting wood fibres and can grab or chatter in aluminium, producing rough cuts and burrs. In plastics, the wrong blade can overheat the cut and cause melting or chipping. A blade designed for these materials improves control and edge quality.
How do I stop plastics from melting while cutting?
Melting is usually caused by heat build-up from a dull blade, feeding too slowly, or friction. Use a sharp blade suited to plastics, maintain a steady feed rate, and support the work to minimise vibration. Clearing debris and avoiding lingering in the cut also helps.
Why do I get burrs when cutting aluminium?
Burrs can result from the wrong blade choice, a blunt blade, or vibration from inadequate clamping. Using a blade designed for non-ferrous metals, securing the work firmly, and keeping the blade clean and sharp will generally reduce burr formation.
Can I use these blades on a mitre saw?
Many people cut aluminium and plastics on a mitre saw, but you must confirm the blade is rated for the saw’s RPM and that your saw and setup are suitable for the material. Secure clamping and correct guarding are essential for safe cutting.
Should I use lubricant or wax when cutting aluminium?
Some cutting setups benefit from appropriate lubricants to reduce friction and improve finish, but this depends on the blade, saw type and application. If you use any lubricant, ensure it’s suitable for the tool and work environment, and follow the saw and blade guidance.
What safety gear is recommended for cutting metal and plastics?
Eye protection is essential due to swarf and chips. Hearing protection is also recommended, and a properly fitted dust mask or respirator can be important when cutting plastics that create fine dust. Secure workholding and good housekeeping help reduce hazards from sharp offcuts.