Circular saw blade STHOR 08831 carbide-tipped for wood, 210 mm diameter, 30 mm bore, 40 teeth

The STHOR 08831 carbide-tipped circular saw blade is a 210 mm diameter blade with a 30 mm bore and 40 teeth, designed for cutting solid wood, wood-based panels and some hard plastics. It fits table saws and mitre saws that accept blades with a 30 mm arbor and is intended for both cross and angled cuts, offering a moderate 3.5 mm kerf for general woodworking tasks.

Advantages

The blade features carbide-tipped teeth with a forked cap brazed with brass for improved tip retention and wear resistance. A positive rake angle of approximately 10° and alternate (BA) tooth geometry provide efficient cutting action and balanced performance between smoothness and cutting speed. The 40-tooth configuration supports accurate crosscuts and cleaner edges on boards, plywood and similar materials.

Suitable for

• Crosscutting solid timber and boards
• Angle/mitre cuts on wood and wood-based panels
• Ripping and finishing cuts where a balance of speed and edge quality is needed
• Cutting certain hard plastics (test cut recommended)

When it may not be suitable

This blade is not optimised for continuous heavy ripping of large-dimension hardwoods where specialised ripping blades with fewer teeth and different geometry perform better. It may also be unsuitable for frequent cutting of abrasive materials or metals; use blades specifically designed for those materials.

Key specifications

• Diameter: 210 mm
• Bore (arbor): 30 mm
• Number of teeth: 40
• Tooth type: alternate (BA)
• Tip material: carbide-tipped
• Kerf (cut width): approx. 3.5 mm
• Positive rake angle: approx. 10°

How to use

Mount the blade on a compatible table saw or mitre saw with a 30 mm arbor, ensuring the saw is unplugged or isolated before installation. Tighten the arbor nut to the manufacturer’s torque specification and confirm the blade rotates in the correct direction. Use appropriate feed rates and support the workpiece to avoid vibration. When cutting hard plastics, perform a test cut first and reduce feed speed if melting or chipping occurs. Wear appropriate eye, ear and dust protection while operating the saw.

What to consider before purchase

• Ensure your saw accepts a 210 mm blade with a 30 mm bore
• Confirm the tooth count and geometry suit the types of cuts you need (40 teeth, alternate BA)
• Consider whether you need a blade optimised for aggressive ripping or for very fine finish cuts
• Plan for blade maintenance or replacement frequency based on material hardness and usage

Usage recommendations

For best results on wood and wood-based panels, use steady feed pressure, proper support and a clean blade; perform a trial cut when working with unfamiliar or harder plastics to adjust speed and feed.