KWT-040 TYPE18 18V 1/2" Ultra Compact Impact Wrench

Take everything you need straight from the service park with the exclusive Race Rally Supplies Kielder TYPE18 High Torque Impact Wrench Rally Kit. Built around Kielder's professional-grade 18V brushless impact wrench, this package includes a 4.0Ah TYPE18 battery, charger and your choice of impact socket and foam insert, making it an ideal addition to any rally service kit, race trailer or workshop.

The Kielder KWT-040 TYPE18 18V 1/2" Ultra Compact Impact Wrench delivers an impressive 400Nm of torque from an ultra-compact tool body measuring just 110mm in length. Designed for automotive, motorsport, workshop and maintenance applications, it provides serious fastening power where space is limited.

At just 1.6kg with a 4.0Ah battery fitted, the KWT-040 is easy to manoeuvre and comfortable to use for extended periods. Its digital brushless motor, three torque and speed modes and variable-speed trigger provide excellent control across a wide range of fastening applications.

The KWT-040 is part of the Kielder TYPE18 18V battery system, allowing the same interchangeable batteries to be used across the complete TYPE18 tool range.

Please note: This impact wrench is not suitable for scaffolding use.

400Nm of Torque in an Ultra-Compact Package

The KWT-040 produces up to 400Nm maximum fastening torque while maintaining an exceptionally compact 110mm tool length.

This makes it particularly useful when working around suspension components, engine bays, chassis assemblies and other areas where a conventional impact wrench simply won't fit.

Kielder's G-Square+ Technology allows the tool to reach maximum torque faster while delivering 30% increased power compared with the previous model.

Three Torque & Speed Modes

Three selectable operating modes allow the KWT-040 to be matched to the fastening application:

• High: 400Nm
• Medium: 280Nm
• Low: 175Nm

The variable-speed trigger provides additional control in both forward and reverse, allowing the operator to regulate the tool according to the job.

An electronic brake provides near-instant stopping when the trigger is released.

Digital Brushless Motor

The professional-quality digital brushless motor provides smooth, efficient operation without the friction and wear associated with conventional brushed motors.

The brushless design helps optimise power delivery and battery efficiency while improving overall tool durability.

The all-metal gearbox is designed for the demands of professional workshop and automotive use.

Built for Tight Spaces

At only 110mm long, the KWT-040 is specifically suited to applications where access is restricted.

Its compact design makes it ideal for:

• Motorsport workshops
• Race and rally preparation
• Vehicle maintenance
• Suspension work
• Engine bay applications
• Garage use
• Commercial workshops
• General mechanical work

The integrated LED work light is positioned at the base of the tool to illuminate the fastening area, helping improve visibility when working in darker or restricted spaces.

1/2" Square Drive

The KWT-040 uses a 1/2" square drive with a ball-bearing socket retention system, providing a secure connection between the tool and socket.

With a maximum recommended bolt diameter of M20, it has the capacity for a wide range of automotive and workshop fastening applications.

Kielder TYPE18 Battery System

The KWT-040 is part of the Kielder TYPE18 18V battery platform.

TYPE18 batteries are interchangeable across the range, allowing one battery system to power multiple tools.

Kielder TYPE18 batteries have been designed with automotive use in mind and feature drainage holes in the battery base, helping protect against small amounts of oil or other fluids entering the battery.

The system provides a practical way to build a complete cordless workshop tool kit without needing separate batteries for every tool.

Key Features

• Exclusive Race Rally Supplies bundle
• 400Nm maximum fastening torque
• Ultra-compact 110mm tool length
• 1.6kg with 4.0Ah battery
• Kielder G-Square+ Technology
• 30% increased power over previous model
• Digital brushless motor
• 3 torque and speed modes
• 400Nm / 280Nm / 175Nm torque settings
• Variable-speed trigger
• Forward and reverse operation
• Electronic brake
• All-metal gearbox
• Integrated LED work light
• 1/2" square drive
• Ball-bearing socket retention
• Maximum bolt diameter: M20
• TYPE18 18V Li-ion battery compatible
• 3-year manufacturer's warranty when registered with Kielder
• Not suitable for scaffolding use

Specifications

What's Included?

• KWT-040 TYPE18 18V Impact Wrench
• Choice of 18V Li-ion battery
• Charger
• Belt clip
• Pro Carry Case

Battery and charger configuration depends on the option selected.

Frequently Asked Questions

How much torque does the KWT-040 produce?

The KWT-040 produces up to 400Nm of maximum fastening torque, with additional 280Nm and 175Nm settings.

How long is the KWT-040?

The tool body is only 110mm long, making it particularly useful in tight and restricted spaces.

How much does the KWT-040 weigh?

The KWT-040 weighs 1.6kg with a 4.0Ah battery fitted.

Is the KWT-040 brushless?

Yes. It uses a digital brushless motor designed to improve efficiency, power delivery and durability.

What battery does the KWT-040 use?

It uses the Kielder TYPE18 18V Li-ion battery system. TYPE18 batteries are interchangeable across compatible Kielder TYPE18 tools.

Does it have different torque settings?

Yes. The KWT-040 has three torque and speed modes: High 400Nm, Medium 280Nm and Low 175Nm.

Does it have a variable-speed trigger?

Yes. The variable-speed trigger provides additional control in both forward and reverse.

What size socket drive does it use?

The KWT-040 has a 1/2" square drive with ball-bearing socket retention.

Is the KWT-040 suitable for scaffolding?

No. This product is specifically not suitable for scaffolding use.

Does it come with a warranty?

Yes. Kielder provides a 3-year manufacturer's warranty when the tool is registered, subject to the manufacturer's terms and conditions.

Can I use other TYPE18 batteries?

Yes. The impact wrench is fully compatible with all Kielder TYPE18 18V batteries.