Dewalt dwa4270-3 Oscillating Straight Cutting Blade 3 Pack

Product Description

The DEWALT dwa4270-3 is a 3-pack of straight cutting blades designed for use with oscillating multi-tools. Each blade measures 1.25 inches in width and 1.25 inches in overall length, constructed from steel for durability in fast cutting applications. These blades feature an open-back universal connector that is compatible with oscillating interface system (OIS) mounts. The open-back design allows for faster blade changes compared to closed-back or Starlock interface designs, though it provides less rigidity and transmits less torque than those alternatives. These blades are installed by HVAC technicians, plumbers, electricians, and general contractors who rely on oscillating tools for trim, flush, and detail cuts.

These straight cutting blades are suited for residential and light commercial applications where an oscillating tool with an OIS-compatible mount is in use. The 3-pack format makes them practical for job sites where blade wear is frequent or multiple cuts of varying material are expected in a single service call. They are not compatible with Starlock system tools or tool platforms that require a closed-back interface.

Key Features

• Open-back universal connector fits oscillating tools with an OIS-compatible mount
• Fast cutting blade geometry for efficient straight cuts
• 1.25-inch blade width and 1.25-inch overall length for detail and flush-cut work
• Steel construction for durability across common cutting applications
• 3-pack quantity reduces downtime from blade changes on active job sites
• Not compatible with Starlock system tools

Compatibility

Compatible with oscillating tools equipped with an oscillating interface system (OIS) mount. These blades are not compatible with Starlock system tools or closed-back interface platforms.

Installation Notes

Blade installation and removal should be performed with the oscillating tool powered off and unplugged or with the battery removed. Follow the tool manufacturer's blade-change procedure for OIS-compatible accessories. The open-back connector design speeds up field swaps but offers reduced rigidity compared to closed-back connections, so avoid applications requiring heavy lateral force. Blade handling should be done carefully to avoid contact with cutting edges.

Technical Specifications

• Blade Width: 1.25 inches
• Overall Length: 1.25 inches
• Material: Steel
• Connector Type: Open-back universal (OIS compatible)
• Quantity: 3 per pack
• Shipping Weight: 0.22 pounds

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: dwa4270-3