Bosch 42403 Circular Saw Blade 400mm x 30mm Bore, 30 Teeth, TCT, ATB, for Wood

Professional woodworkers and carpenters rely on the Bosch 42403 circular saw blade for precise ripping and cross-cutting in solid wood, plywood, chipboard, and MDF. Mounted on table saws or panel saws, this 400 mm blade with 30 tungsten carbide-tipped teeth and an alternate top bevel grind delivers clean, splinter-free cuts even in demanding production environments.

Key specifications

• Blade diameter: 400 mm
• Bore diameter: 30 mm
• Number of teeth: 30
• Tooth grind: ATB (Alternate Top Bevel)
• Blade material: Tungsten carbide tipped (TCT)
• Kerf thickness: 3.2 mm
• Plate thickness: 2.2 mm
• Hook angle: 15°
• Max rotational speed: 4500 RPM
• Expansion slots: Yes
• Anti-vibration design: Yes
• Application: Ripping and cross-cutting
• Compatible materials: Solid wood, plywood, chipboard, MDF
• Machine compatibility: Table saws, panel saws, crosscut saws

Why choose it

The Bosch 42403 combines a rigid, anti-vibration blade body with precision-ground carbide teeth to maintain accuracy and reduce noise during operation. Its expansion slots dissipate heat, preventing warping and extending blade life. The 15° hook angle ensures fast, aggressive cutting in rip applications while still producing a smooth finish in crosscuts.

Ideal use cases

• Ripping hardwood and softwood boards to width
• Cross-cutting plywood and MDF panels without chipping
• Processing chipboard in furniture manufacturing
• General construction and carpentry cutting tasks

Good to know

Always verify that your saw's arbor size matches the 30 mm bore and that the blade's maximum speed rating exceeds your machine's RPM. For best results, use a stabilizer or dampener if your saw supports one, and keep the blade clean from resin buildup to maintain cutting performance.