Dewalt DT20740-QZ 30mm HCS Japanese Tooth Oscillating Multi Tool Blade

The Dewalt DT20740-QZ 30mm HCS Japanese Tooth Oscillating Multi Tool Blade is a precision engineered cutting accessory designed for professional carpenters, joiners, flooring installers and renovation specialists who demand accurate, efficient and reliable cutting performance.

Combining durable high carbon steel construction with an aggressive Japanese tooth design and universal fitment, this versatile multi tool blade delivers excellent results across a range of woodworking and installation applications.

Featuring a nominal 30mm cutting width, the DT20740-QZ is particularly effective when cutting hardwood, making it ideal for detailed joinery, trimming timber, creating recesses and performing controlled plunge cuts. Its narrow cutting profile allows users to work accurately in confined spaces and around existing fixtures, where larger saw blades may be difficult to manoeuvre.

Manufactured from high carbon steel (HCS), the blade provides the flexibility and cutting performance required for demanding woodworking applications. Its specially designed Japanese tooth configuration delivers efficient material removal and fast, controlled cutting through timber, helping reduce unnecessary effort while achieving clean, precise results.

In addition to hardwood, the blade is suitable for cutting softer woods, plasterboard and plastic materials, making it a practical accessory for general renovation and interior fitting tasks. Whether preparing timber joints, trimming flooring or cutting openings in plasterboard, its versatile design helps tradespeople complete multiple applications using a single accessory.

The universal fitment design enables compatibility with many leading oscillating multi tool brands without requiring additional adapters.

This provides excellent flexibility for professionals working with different tools, while the convenient blade attachment design allows quick changes between cutting accessories, reducing interruptions and improving productivity.

For example, a carpenter installing hardwood flooring can use the DT20740-QZ to make precise plunge cuts and trim timber around door frames, allowing flooring to fit neatly beneath existing architraves. The narrow cutting edge provides excellent control, while the Japanese tooth design helps cut efficiently through dense timber. This reduces the need for additional hand tools, minimises material waste and helps achieve a professional finish.

The oscillating cutting action also makes the blade particularly useful for working close to surrounding surfaces and performing detailed cuts in areas that would be difficult to access with conventional saws. Its compact cutting profile offers excellent manoeuvrability when carrying out intricate installation and repair work.