Saw blade DeWALT DT20746-QZ for light concrete and plasterboard

The DeWALT DT20746-QZ for light concrete and plasterboard is a multifunction saw blade designed for oscillating multi-tools. Intended for controlled cutting in soft masonry, lightweight concrete and plasterboard, this single-piece blade comes packaged in a blister and offers a combination of tooth geometry and material suited to construction and renovation tasks. The blade size and mounting are compatible with a range of DeWALT and universal oscillating tools, making it convenient for professionals and DIY users who need a compact accessory for detail and repair work.

Advantages

This DeWALT blade provides efficient material removal on light concrete and plasterboard while maintaining cutting precision. Its tooth design reduces clogging when cutting gypsum-based materials and helps deliver straighter cuts in grooves and openings. The one-piece construction gives reliable stability under repeated use and the blister packaging protects the blade during storage and transport.

Suitable for

• Cutting grooves in plaster and plasterboard for wiring or channels
• Trimming and shaping lightweight concrete blocks and aerated concrete
• Removing tile grout and mortar residue from joints and edges
• Detail cutting around openings for fittings and pipes in renovation work

Key specifications

• Compatibility: oscillating multi-tools with universal mounting
• Material focus: light concrete, plasterboard (gypsum-based), tile grout
• Construction: single-piece metal blade designed for durability
• Packaging: blister pack, single blade included

How to use

Fit the blade to your oscillating multi-tool following the tool manufacturer's instructions and ensure the tool is disconnected from power before changing accessories. Select a moderate oscillation speed for controlled cutting in plasterboard and light concrete to avoid excessive vibration. Position the blade so that the cutting edge contacts the work surface at the intended start point, then advance steadily without forcing; allow the blade to do the cutting. Withdraw periodically to clear debris and inspect the progress to maintain a straight groove or clean edge.

Usage recommendations

Use appropriate personal protective equipment: eye protection, dust mask or respirator, and gloves. For best results on plasterboard, score the surface first if a precise edge is required. When cutting tile grout or harder material, reduce feed pressure and clear accumulated dust frequently to prolong blade life. Store the blade in its blister packaging to protect the cutting edge when not in use.