DEWALT 20V MAX XR Cordless Ratchet DCF510B — Bare Tool, 3/8" & 1/2" Sealed Head, 75 ft-lbs Torque

DEWALT's 20V MAX XR Cordless Ratchet (DCF510B) is a brushless, interchangeable 3/8" and 1/2" sealed-head ratchet designed to deliver up to 75 ft-lbs of torque and 0–300 RPM for professional fastening and loosening tasks.

This compact cordless ratchet combines a brushless motor, a sealed head, and a quick-change anvil system so you can switch between 3/8" and 1/2" square drives without a separate tool. Built for mechanics and tradespeople, the tool balances power and accessibility with features like an integrated LED, variable-speed trigger, and a trigger lock for safer transport and storage. The battery and charger are sold separately, allowing you to integrate the ratchet into an existing DEWALT 20V MAX* battery ecosystem.

How does the ratchet perform on stuck or corroded fasteners?

The brushless motor produces firm, consistent torque that helps break free stubborn nuts and bolts while maintaining battery efficiency. With 75 ft-lbs of peak torque and a controlled 0–300 no-load RPM range, you can apply force progressively to avoid rounding fasteners.

• 75 ft-lbs max torque for heavy-duty fastening and removal
• 0–300 RPM for controlled initial engagement
• Brushless design for longer motor life and improved runtime

What makes the sealed head and housing useful on the job?

The sealed head limits ingress from oils and solvents commonly found in automotive and industrial settings, protecting internal components. Encasing the tool in glass-filled nylon adds chemical resistance and impact durability without adding unnecessary weight.

• Sealed head helps resist automotive fluids and shop solvents
• Glass-filled nylon housing improves durability and reduces weight
• Design geared for frequent use in greasy, dirty environments

Can I use this ratchet for multiple socket sizes and tight spaces?

The ratchet’s interchangeable anvil lets you rapidly switch between 3/8" and 1/2" square drives so one tool covers numerous socket sizes. A forward/reverse selector and compact head profile simplify work in confined areas, and the variable-speed trigger offers precise speed control for delicate tasks.

• Quick-change anvil system for 3/8" and 1/2" drives
• Forward/reverse switch for efficient operation in tight spots
• Variable-speed trigger for delicate or high-torque needs

How does the tool help visibility and safety during use?

An integrated LED illuminates shadowed workspaces so you can see socket engagement clearly, reducing retries or stripped fasteners. A trigger lock prevents accidental starts while the tool is in a bag, vehicle, or storage, enhancing jobsite safety.

• On-board LED brightens dark work areas for accurate engagement
• Trigger lock prevents unintended activation during transport
• Compact form factor improves control and reduces fatigue

Who is this for? The DEWALT 20V MAX XR DCF510B is aimed at professional mechanics, fleet technicians, and serious DIYers who need a rugged, battery-powered ratchet that replaces cords and air hoses. It's especially useful in automotive service bays, repair shops, and maintenance departments where access is limited and resistance to oils and solvents matters. Choose this bare tool if you already use DEWALT 20V MAX batteries, or pair it with DEWALT batteries and chargers to build a lightweight, cordless fastening kit for repetitive, heavy-duty applications.