Reciprocating Saw Blades DeWalt DT90391-QZ, 5 pcs — Replacement Blades for Reciprocating Saws

DeWalt DT90391-QZ is a pack of five reciprocating saw blades engineered for replacement use in compatible reciprocating and sabre saws. These blades feature a bi-metal construction combining high carbon steel bodies with cobalt-alloyed high speed steel cutting edges, delivering durability and wear resistance for demanding cutting tasks in renovation, construction and maintenance contexts.

Advantages

The bi-metal construction provides a balance of flexibility and edge retention, reducing the risk of breakage during heavy-duty work. Teeth with an aggressive geometry and a specially designed angle enable fast material removal and efficient cutting through tensile and abrasive metals. The set format of five blades ensures immediate replacement availability for continuous workflow during demolition or repair jobs.

Suitable for

• Demolition and renovation cutting where metal and mixed materials are present
• Cutting tensile and abrasive metals such as thin structural steel, pipes and profiles
• Maintenance and repair tasks requiring durable, fast-cutting reciprocating saw blades

Key specifications

• Blade material: bi-metal (high carbon steel body with cobalt-alloyed high speed steel cutting edge)
• Tooth design: aggressive geometry with a special cutting angle for rapid material removal
• Quantity: 5 blades per pack
• Intended tool: reciprocating/sabre saws (compatible with blades of the appropriate shank type and size)
• Primary applications: demolition, cutting tensile and abrasive metals, general repair work

How to use

Select a blade from the pack that matches the shank type and length required by the reciprocating saw. Secure the blade in the saw’s clamping mechanism according to the saw manufacturer’s instructions, ensuring the teeth face the correct cutting direction. Use steady feed pressure and allow the blade’s aggressive tooth geometry to remove material without forcing the tool; for metal work, use appropriate cutting speed and coolant or cutting lubricant if recommended for the material. Replace blades when wear or damage becomes evident to maintain cutting performance and safety.

Usage recommendations

For optimal results when cutting tensile or abrasive metals, use a consistent cutting speed and consider light lubrication to extend blade life. Inspect blades before use and replace any that show excessive wear, bending or missing teeth. Always follow the reciprocating saw manufacturer’s safety guidelines, wear appropriate personal protective equipment and secure the workpiece before cutting.