11870 Circular Saw Blade, 10 In., 180-tooth, 5/8 In. Arbor

The Irwin 11870 is a 10-inch circular saw blade with 180 teeth, engineered to deliver smooth, precise cuts in delicate sheet goods and composite materials. Fitted with a 5/8-inch arbor, it works with most standard 10-inch circular saws. The high tooth count and precision-ground design minimize tear-out and splintering, making it ideal for plywood, veneer, OSB, and plastic applications where a clean finish matters.

Whether you're cutting cabinet components, installing trim, or working with thin-gauge materials, this blade produces the fine edge quality that professional carpenters and serious DIYers demand. Its fully hardened steel plate runs truer and longer while maintaining sharpness through extended use, delivering the accuracy and smooth finish that woodworkers expect.

Features and Benefits

• 180-Tooth Design: The high tooth count creates ultra-smooth cuts and minimizes splintering, perfect for veneer, plywood, and other delicate sheet goods.
• High-Carbon Steel (HCS) Cutting Edge: Durable, wear-resistant steel maintains edge sharpness even on abrasive materials like OSB and plastic.
• Fully Hardened Plate: Runs truer longer and provides the stability needed for precise, accurate cuts without excessive vibration.
• Thin Kerf (0.078 in.): The blade's thin kerf design helps optimize performance for standard 10-inch circular saws.
• Precision-Ground Teeth with 3° Hook Angle: Delivers the accuracy and smooth finish that woodworkers and craftspeople demand.
• 5/8-Inch Arbor Compatibility: Fits most standard 10-inch circular saws for straightforward installation and secure operation.

Specifications

• Brand: Irwin
• Model: 11870
• Diameter: 10 inches
• Tooth Count: 180
• Arbor Size: 5/8 inch
• Material: High-carbon steel (HCS) cutting edge, fully hardened plate
• Plate Thickness: 1.6 mm
• Kerf: 0.078 inch
• Tooth Grind: Top/face grind
• Hook Angle: 3 degrees
• Maximum RPM: 7,000