Makita B-17619 COMET Diamond Blade 300x20 mm for Concrete, Masonry, Stone

The Makita B-17619 COMET Diamond Blade is a high-performance segmented cutting disc designed for professional use on concrete, masonry, stone, paving slabs, and bricks. With a 300 mm diameter and 20 mm bore, this blade delivers fast, clean cuts in both dry and wet cutting applications. The COMET series is known for its durability and efficiency, making it an essential accessory for angle grinders, power cutters, and cut-off saws.

Advantages

Segmented diamond edge ensures aggressive cutting action and long service life. Suitable for general purpose cutting on a wide range of construction materials. Compatible with multiple tool types for versatility on the job site.

Suitable for

• Concrete slabs and blocks
• Masonry walls and bricks
• Stone and paving slabs
• General construction and demolition cutting

Key specifications

• Blade Diameter: 300 mm
• Bore Diameter: 20 mm
• Segment Height: 7 mm
• Kerf Width: 3.0 mm
• Max RPM: 5100
• Cutting Method: Dry or Wet
• Blade Type: Segmented Diamond Blade
• Core Material: Steel
• Cutting Edge: Diamond Segments
• Arbor Type: Round Bore

Recommendations

Always use appropriate safety gear and follow the tool manufacturer's guidelines for maximum RPM. For best results, use with a compatible angle grinder or cut-off saw rated for 300 mm blades.