DEWALT DWA4240 – DIAMOND HALF MOON OSCILLATING BLADE

The DEWALT DWA4240 Diamond Half Moon Blade is designed for demanding surface‑removal and tile‑prep applications. Featuring a synthetic diamond‑grit cutting edge, this multipurpose blade excels at removing grout, thinset, mortar, plaster, and other abrasive construction materials. Its half‑moon arc provides improved stability, wide surface engagement, and smooth grinding action while maintaining consistent cutting depth and edge control.

Built with UNIVERSAL FITMENT™, the DWA4240 installs onto nearly all major oscillating tools without requiring adapters. Its long‑life diamond grit formulation makes it an ideal accessory for renovation professionals who frequently perform grout removal, tile repair, and abrasive-material removal.

DETAILS

• Manufacturer: DEWALT
• Model Number: DWA4240
• Product Name: Diamond Half Moon Oscillating Blade
• Material: Diamond‑grit coated steel
• Diameter: 3‑5/8 in
• Length: ~2‑1/2 in
• Width: 3‑5/8 in
• Includes: 1 diamond half‑moon blade
• Warnings: May include California Proposition 65 warning

KEY FEATURES

• Diamond Grit Edge for long service life in highly abrasive applications
• Half‑Moon Shape enhances operator control and maintains consistent depth during grout and mortar removal
• Universal Fitment™ works with all major oscillating tool brands without adapters
• Optimized for Tile & Masonry Work, providing smooth, wide‑surface material removal
• Durable Construction suited for professional‑grade workloads

APPLICATIONS

• Grout removal (floor & wall tile)
• Thinset and mortar grinding
• Plaster and masonry material removal
• Tile repair and renovation prep work
• Surface smoothing in abrasive materials