DEWALT Metal Shear/Cutter Drill Attachment and Cutting Wheels - Fast

In this review the DEWALT metal shear attachment paired with a 5-pack of 4-1/2 in cutting wheels is evaluated for roofers, siding installers and DIYers who need faster, cleaner metal cuts than hand shears provide. The biggest reason to consider this combo is straightforward: the shear attachment converts an impact driver into a dedicated metal cutting tool that handles up to 18GA sheet metal while the thin.045 in wheels deliver fast, burr-free cuts on a variety of ferrous materials.

Key Features

• 18GA cutting capacity: Able to cut up to 18GA sheet metal and common roofing and siding panels so users can tackle corrugated and flat panels without hand fatigue.
• 360 degree swivel head: The rotating head improves maneuverability in tight spaces and makes curved or angled cuts easier to control.
• Standard 1/4 in hex shank: Connects quickly to most impact drivers and drills, making setup simple and keeping the tool compatible across brands.
• Thin.045 in wheel design: The cutting wheels are thin for fast, burr-free cutting that reduces filing and cleanup after cuts.
• Proprietary abrasive mix: Aluminum oxide grain mix gives aggressive cutting action for consistent performance on metal.
• Reinforced wheels: Two full sheets of fiberglass in each wheel improve durability and safety during high-speed cutting.

Who It's For

This kit is best for tradespeople and serious DIYers who frequently cut sheet metal, vinyl siding, ductwork, or roofing panels and want to speed up repetitive cuts. It appeals to anyone who already uses an 18V-20V impact driver and wants a quick attachment to expand capability without buying a separate shear tool.

It is less suited for precision fabrication where a dedicated metal shear or press break is required, and those working on very thick steel should look for a tool rated beyond 18GA. The attachment-only nature also means a compatible drill or impact driver is required to use it.

Pros & Cons

Pros

• Converts common impact drivers into effective metal shears for faster cuts compared with hand shears.
• Easy attachment with the 1/4 in hex shank and generally reported as simple to fit and use.
• Cutting wheels with.045 in edge and proprietary grain deliver clean, burr-free edges and good durability.

Cons

• Attachment only; a compatible 18V-20V impact driver or drill is required and is not included.
• Some users report mixed fit experience across different driver models, so checking fit is advisable.

Specifications

Our Verdict

The DEWALT shear attachment plus thin cutting wheels is a practical, value-minded solution for roofers, siding installers and DIYers who already own an 18V-20V impact driver and need quicker, cleaner cuts on sheet metal. It saves time and reduces cleanup compared with hand shears, and the wheels are durable for routine jobsite use. Check fit with your driver before purchase, but for compatible users this combo is a smart, cost-effective addition to the toolbox.

Frequently Asked Questions

Will this work with my impact driver?
The shear uses a standard 1/4 in hex shank and is compatible with most 18V-20V impact drivers and drills, though fit can vary by model so a quick test fit is recommended.

What thickness can it cut?
The attachment is rated to cut up to 18GA material, including sheet metal, corrugated panels, duct and siding.

Are the wheels durable?
The 4-1/2 in wheels use a proprietary aluminum oxide grain and two fiberglass sheets for improved durability and safer cutting on metal.