DEWALT DT40257-QZ Extreme Runtime Diamond Blade 125 mm

The DEWALT DT40257-QZ Extreme Runtime Diamond Blade is a high-performance cutting tool designed for professional use on concrete, reinforced concrete, masonry, stone, paving, kerbs, slabs, blocks, and bricks. With a 125 mm diameter and 22.23 mm bore, this segmented blade delivers fast, precise cuts in both dry and wet conditions. Laser welded for durability, it offers extreme runtime and is compatible with angle grinders.

Advantages

Extreme runtime technology ensures longer cutting life and reduced downtime. The laser-welded segments provide superior bond strength, while the high-quality diamond segments deliver consistent performance. Suitable for a wide range of construction materials, this blade is a versatile addition to any toolkit.

Suitable for

• Cutting concrete and reinforced concrete
• Masonry and stone work
• Paving, kerbs, slabs, and blocks
• Brick cutting

Key specifications

• Blade Diameter: 125 mm (5 inches)
• Bore Diameter: 22.23 mm (7/8 inch)
• Blade Type: Segmented
• Segment Height: 12 mm
• Segment Width (Kerf): 2.4 mm
• Max Rotational Speed: 12,250 RPM
• Cutting Method: Dry or Wet
• Segment Bonding: Laser Welded
• Blade Material: High-Quality Diamond Segments
• Pack Quantity: 1 Blade

Recommendations

For optimal performance, use with a compatible angle grinder and follow safety guidelines. Always wear appropriate personal protective equipment.