Draper D20 20V Brushless Mid-Torque Impact Wrench, 1/2" Sq. Dr., 400Nm, 2 x 4.0Ah Batteries, 1 x Charger

The Draper D20IW400SET/2 is the definitive complete kit for professionals who need serious cordless impact wrench performance without compromise. Pairing the 400Nm D20 brushless mid-torque impact wrench with two high-capacity 4.0Ah batteries, a 2.4A fast charger, and a carry case, this kit is built for tradespeople, mechanics, fabricators, and engineers who depend on their tools through a full working day.

The 4.0Ah batteries — the largest capacity in the D20 range — deliver maximum runtime per charge, while the 2.4A fast charger fully replenishes a depleted 4.0Ah cell in just 110 minutes. Combined with the twin battery setup, this means virtually uninterrupted operation across even the most demanding fastening sessions.

Five selectable electronic torque presets — 100Nm, 150Nm, 200Nm, 300Nm, and 400Nm — give you precise, repeatable control over fastener torque, protecting threads, preventing component damage, and ensuring consistent results whether you're working on passenger cars, commercial vehicles, structural steelwork, or plant machinery.

As part of Draper's D20 20V interchangeable battery platform, both 4.0Ah batteries are fully compatible with every other tool in the D20 range — making this kit a substantial and versatile addition to any professional cordless toolkit.

Key Features & Benefits:

Brushless Motor for All-Day Performance
The high-performance brushless motor delivers sustained efficiency under heavy load, running cooler and drawing less current per cycle than a brushed equivalent. For professionals using this wrench intensively, that means more operations per charge, a longer tool service life, and lower long-term running costs.

400Nm Maximum Torque
Delivering up to 400Nm through a 3,300bpm impact mechanism, the D20IW400SET/2 handles the most demanding fastening tasks in the D20 range — M16 and M20 structural bolts, heavy commercial vehicle wheel nuts, suspension and drivetrain components, and torque-critical engineering fasteners that would be at or beyond the limit of a standard 250Nm impact wrench.

5 Electronic Torque Presets
The five-position electronic torque selector is the feature that sets this wrench apart from basic impact tools. Rather than relying on trigger feel alone, you select a defined torque output — 100Nm, 150Nm, 200Nm, 300Nm, or 400Nm — and the tool delivers it consistently, stopping precisely at the set point. This is essential for safety-critical fasteners where both under- and over-tightening carry real consequences.

2 x 4.0Ah High-Capacity Batteries
The 4.0Ah batteries included in this kit are the highest-capacity cells in the D20 range, offering significantly extended runtime compared to 2.0Ah or 3.0Ah alternatives — particularly valuable when working through large volumes of fasteners or operating the wrench at maximum torque settings. With two supplied, one is always charged and ready while the other powers the tool.

2.4A Fast Charger — Full Charge in 110 Minutes
The 2.4A charger included in this kit charges faster than the standard 1.65A charger supplied with entry-level D20 kits. A fully depleted 4.0Ah battery is restored to full charge in approximately 110 minutes — meaning that even on a busy site, downtime between batteries is minimal.

1/2" Square Drive
The industry-standard 1/2" square drive is compatible with the full range of impact sockets — metric and imperial, deep and shallow — as well as socket adaptors and extension bars. No specialist tooling required; it works with the socket sets professionals already own.

Super Bright LED Worklight
The integrated LED activates during use, illuminating the fastener and surrounding area in engine bays, under vehicles on axle stands, in confined plant rooms, and on site in low-light conditions.

Protective Bump Cover
The rubber bump cover protects the tool body from knocks, impacts, and abrasion in demanding workshop and site environments — an important detail on a premium kit that will see sustained professional use.

Belt Clip for On-Site Portability
The integrated belt clip secures the wrench when moving between fixings, keeping both hands free for component handling and positioning.

Supplied in Carry Case
The complete kit — wrench, two 4.0Ah batteries, and fast charger — is housed in a moulded carry case for organised storage and protected transport between jobs and sites.

5 Torque Presets — Practical Applications:

Always refer to manufacturer torque specifications for safety-critical fasteners.

Why Choose the SET/2 Over the Bare Tool?

The bare tool variant (D20IW400/2) is the right choice for existing D20 users who already own high-capacity batteries. The D20IW400SET/2 is the better option for anyone who wants maximum performance from day one — the 4.0Ah batteries deliver noticeably more runtime than 2.0Ah cells, the faster 2.4A charger reduces recovery time, and the carry case provides practical storage that the bare tool doesn't include. For professional use where downtime costs money, the upgrade to 4.0Ah capacity and faster charging is a worthwhile investment.

Battery & Compatibility:

Both 4.0Ah batteries in this kit are D20 20V Li-ion, interchangeable across Draper's entire D20 cordless tool range — drills, SDS hammers, circular saws, jigsaws, sanders, multi-tools, and more. The D20 platform is designed as a single-battery ecosystem, meaning every battery you own works in every D20 tool you own, with no adaptor, no compatibility concerns, and no separate charging infrastructure to manage.

Specification Summary:

Warranty:

The Draper D20IW400SET/2 is backed by a 24-month manufacturer's warranty across the full kit as standard. Register your product with Draper to extend this to 36 months free of charge — an additional year of manufacturer-backed protection at no extra cost.

What is included with the Draper D20IW400SET/2?
The kit includes the D20 brushless mid-torque impact wrench, two 4.0Ah D20 20V Li-ion batteries, a 2.4A fast charger, and a moulded carry case.

How long does the charger take to fully charge a 4.0Ah battery?
The 2.4A charger included in this kit fully charges a D20 4.0Ah battery in approximately 110 minutes.

What is the difference between the D20IW400/2 and D20IW400SET/2?
The D20IW400/2 is the bare tool only, without batteries, charger, or case. The D20IW400SET/2 is the complete professional kit — including two high-capacity 4.0Ah batteries, a 2.4A fast charger, and a carry case.

Why does this kit include 4.0Ah batteries rather than 2.0Ah?
The 4.0Ah batteries provide significantly extended runtime compared to 2.0Ah cells — particularly important when operating the wrench at higher torque settings over long periods. For professional use, the additional capacity reduces the frequency of battery swaps and keeps productivity high throughout the working day.

Can the batteries in this kit be used with other Draper D20 tools?
Yes — both 4.0Ah batteries are part of Draper's D20 20V interchangeable system and are fully compatible with all tools across the D20 cordless range.

What torque settings does the D20IW400SET/2 offer?
The wrench features five electronic torque presets: 100Nm, 150Nm, 200Nm, 300Nm, and 400Nm — selectable to match the specific torque requirement of each fastener or application.