Reciprocating saw blade DeWalt DT90390-QZ, pack of 5, compatible with multi-purpose cutting

DeWalt DT90390-QZ is a pack of five bi-metal reciprocating saw blades designed for use with compatible reciprocating and multi-purpose saws. These blades combine a high-carbon steel body with cobalt-alloyed high-speed steel cutting edges to deliver improved durability and resistance to heat and wear. The aggressive tooth geometry with a specially optimised angle promotes fast material removal, making the blades suitable for demanding cutting tasks on tensile and abrasive metals as well as general demolition and on-site work.

Advantages

Bi-metal construction balances flexibility and cutting-edge hardness, reducing the risk of blade breakage while maintaining sharpness under heavy loads. The aggressive tooth geometry and new cutting angle accelerate cutting speed and chip evacuation, improving productivity on metal and mixed-material jobs. Packaged as a set of five, the blades provide convenient replacement options for continuous work and reduced downtime during demolition or refurbishment projects.

Suitable for

• Cutting tensile and abrasive metals
• Demolition and rough cutting tasks
• On-site repair and renovation work
• General-purpose metal and mixed-material cutting

Key specifications

• Material: bi-metal (HCS body with cobalt-alloyed HSS cutting edge)
• Tooth geometry: aggressive design with optimised cutting angle for fast material removal
• Pack quantity: 5 blades
• Intended use: heavy-duty and demolition cutting, suitable for tensile and abrasive metals

How to use

Select a blade compatible with your reciprocating or multi-purpose saw and secure it according to the tool manufacturer’s mounting instructions. Use steady, controlled strokes and allow the blade’s geometry to do the cutting; avoid forcing the blade to prevent premature wear. For metal cutting, maintain moderate feed pressure and appropriate saw speed. Replace blades when cutting performance declines or teeth show signs of wear.

Usage recommendations

Wear appropriate personal protective equipment, including eye protection, gloves and hearing protection. For best results on metals, clamp workpieces and remove debris regularly to avoid blade binding. Match blade length and TPI (teeth per inch) to the material thickness and task for optimal cutting performance and life.