Kielder Impact Wrenches

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Kielder Impact Wrenches

Kielder is a UK-based tool brand that specializes in manufacturing high-quality impact wrenches. The company was founded in the 1960s and has since established itself as one of the leading impact wrench brands in Europe.

Kielder's impact wrenches are designed and engineered in the UK using premium materials. They are known for their durability, power and long working life. The brand offers corded, cordless and pneumatic impact wrenches to suit both DIYers and professional trade users.

Kielder has a wide selection of impact wrenches in various drive sizes, torque outputs and features. Their range includes compact and lightweight wrenches for automotive applications as well as heavy-duty, high torque models for commercial and industrial use.

Over the years, Kielder has built a reputation for manufacturing robust and reliable power tools that deliver outstanding performance. Their impact wrenches are made to tackle the toughest fastening applications while delivering best-in-class power and control.

History of the Brand

Kielder is a relatively new impact wrench brand that was founded in 2015 by a team of engineers in the United Kingdom. The founders included James Wilson, Sarah Davies, and Michael Jones, who had previously worked for other power tool companies.

The Kielder founders saw an opportunity to create high-quality, innovative impact wrenches that improved upon existing products on the market. They aimed to build tools that combined top-notch performance with intuitive design and technology.

After securing initial funding and putting together a small team, Kielder began operations in early 2016. They started off developing just a couple flagship models of impact wrenches. However, the brand quickly gained a reputation for power, precision, and reliability.

Within a few short years, Kielder expanded their product line to offer a wide selection of corded and cordless impact wrenches. They also began exporting to markets outside of the UK. Today, Kielder continues to focus on innovation and building the best impact wrenches possible.

Key Features

Impact wrenches from Kielder stand out for their well-balanced combination of power, performance, and thoughtful design. Here are some of their notable features:

Torque - Kielder impact wrenches deliver impressive torque ranging from 150 to 550 ft-lbs depending on the model. This allows you to tackle even the most stubborn bolts and fasteners. The pro models offer maximum torque for heavy duty applications.

Speed - With variable speeds up to 2500 RPM, Kielder wrenches make quick work of projects. The speed can be controlled with the trigger for more precision. Faster speeds help you power through tasks efficiently.

Weight and Size - Ranging from 2 to 9 pounds, Kielder impact wrenches are designed to minimize fatigue. The pro models have protective outer casings and rubberized grips for comfort during extended use. The compact size allows access even in tight spaces.

Ergonomics - From the grip and trigger to the balance, Kielder impact wrenches are made for ease of handling. The rubberized grip helps absorb vibration while the angled head makes accessing bolts easier. The wrenches are designed for one hand operation.

Power Source - Kielder offers both cordless battery-powered models as well as corded electric models. The lithium ion batteries deliver fade-free power and quick charging. The pro models plug into wall outlets for unlimited runtime.

With Kielder's impact wrenches, users get an optimal blend of power, control, and comfort features to tackle projects efficiently. The key specs allow both automotive and industrial applications.

Power and Performance

Kielder impact wrenches are known for their impressive power and performance capabilities. These tools are designed to deliver high torque for demanding applications while also maintaining control and precision.

The power output of Kielder impact wrenches is measured in horsepower, RPMs (revolutions per minute), and torque ratings. Most models range from 2-3 horsepower with max RPMs of 7,000-8,500. This enables them to generate a tremendous amount of torque, usually between 150-550 ft-lbs depending on the specific model.

Higher horsepower along with higher RPMs allows Kielder wrenches to deliver more impacts per minute. More impacts mean more torque, resulting in faster and easier tightening and loosening of bolts. Their motors are optimized to produce max power while staying cool under heavy loads.

When shopping for a Kielder impact wrench, pay close attention to the torque rating which indicates how much rotational force it can produce. Torque ratings of 150-250 ft-lbs are sufficient for most automotive uses while 350+ ft-lbs are recommended for commercial vehicles and heavy equipment. The power and performance of Kielder tools make them well-suited for professional mechanics and industrial settings.

Common Uses

Impact wrenches from Kielder are popular across many industries that require high torque fastening applications. Here are some of the most common uses for Kielder impact wrenches:


Kielder impact wrenches are a staple in automotive repair shops and garages. Mechanics use them for tasks like changing tires, removing bolts on brakes or other components, and loosening engine parts. The high torque allows mechanics to efficiently zip off stubborn bolts.


In construction, impact wrenches are used for operations like building infrastructure, assembling scaffolding, or installing roofing. Workers need to quickly drive large bolts and lag screws into wood or concrete. Kielder wrenches provide the power to make these demanding jobs much easier.


On assembly lines and in manufacturing facilities, impact wrenches are used to rapidly fasten parts and components. The speed and torque helps maximize productivity. Kielder wrenches are rugged and reliable for repeated assembly line use. They allow workers to keep up with the pace of production.

Popular Models

Kielder impact wrenches are known for their durability, power, and performance. Here are some of their most popular and bestselling models:

Kielder K2120

The Kielder K2120 is the flagship model and top seller. It delivers up to 220 ft-lbs of maximum torque, making it powerful enough for lug nuts and other heavy duty applications. It has a durable composite housing and all-metal transmission. The K2120 uses a twin hammer mechanism to deliver outstanding power in a compact size. It's ergonomically designed with a rubber grip handle.

Kielder K1897

Another excellent choice is the Kielder K1897 impact wrench. It provides 180 ft-lbs of max torque with a super duty composite housing. The K1897 uses patented technology to divert air away from the hammer mechanism, reducing wear and tear. It has an adjustable power regulator and rear exhaust to direct air away from the user. The lightweight design reduces fatigue.

Kielder K2850

For ultra heavy duty needs, choose the Kielder K2850. It boasts an incredible 550 ft-lbs of max torque while still being compact and ergonomic. The K2850 has an all-metal housing and hardened steel hammer mechanism built for the most demanding tasks. It's ideal for automotive and industrial needs where extreme torque is required. The K2850 is an investment for professional use.


Kielder impact wrenches are competitively priced, offering great value for money. The price range depends on the model and features:

  • Basic models like the Kielder K2150 start at around £80. These are lightweight and compact, best for light DIY use.

  • Mid-range models like the Kielder K3100 cost approximately £120-150. They offer more power and better performance for automotive work.

  • Heavy duty models designed for professional use like the Kielder K5200 cost upwards of £200. These deliver very high torque for the most demanding applications.

  • Specialist wrenches like the battery-powered Kielder K4100 range from £150-250. Being cordless they offer greater flexibility.

  • Premium models like the Kielder K7100+ with brushless motors and extra features can cost over £300. These provide professional power and longevity.

Kielder offers excellent value across its impact wrench range. While prices are very reasonable, performance and reliability match or exceed more expensive brands. Consider your needs and budget, but expect to pay between £80-350 for most Kielder impact wrenches.

Maintenance Tips

Proper care and maintenance are crucial for ensuring an impact wrench functions optimally over time. Here are some key tips:

  • Keep it clean - Impact wrenches collect dirt, dust and debris during use. Regularly blow out the motor with compressed air or use a soft brush to remove particles. Avoid using water or harsh chemicals for cleaning.

  • Inspect the anvil - The anvil is the square drive at the end of the impact wrench that fits the socket. Check for wear or damage. Replace a worn anvil to ensure a tight socket fit.

  • Lubricate - Sparingly lubricate any moving parts and bearings with light oil. Avoid over-oiling. Refer to the user manual for lubrication points.

  • Check the brushes - Inspect the carbon brushes that conduct power in the motor. Replace worn brushes for optimal performance.

  • Examine the cord - Check the power cord for any cuts, exposed wires or damage. Replace cord immediately if compromised.

  • Change gear oil - For impact wrenches with enclosed gear sets, change oil periodically as specified. Keeping gear oil fresh reduces wear.

  • Replace grease - For impact wrenches with open gear ends, regrease gears regularly per the manual. Fresh grease protects gears.

  • Inspect sockets - Check that impact sockets are not cracked or damaged. Damaged sockets can break under torque or slip off.

Proper maintenance as described in the user manual is key for an impact wrench operating at peak performance for years.


Impact wrenches like Kielder require some additional accessories for optimal performance and longevity. Here are some of the most useful accessories to consider:


Cordless impact wrenches run on lithium-ion batteries. Having 1-2 spare batteries fully charged allows you to swap them out when the first battery runs low on power. Look for batteries that offer long runtimes and short charge times. The batteries should be designed specifically for your Kielder model to ensure proper fit and operation.


A sturdy case is essential to protect your impact wrench and batteries when storing and transporting them. Hard plastic cases that are weatherproof and have customizable foam inserts work best. Make sure the case has enough room for all your batteries, chargers, sockets, and any other accessories. Some cases even have wheels for easy mobility around a shop or job site.


Extensions help add reach to get into tight spaces. Look for impact rated extensions made of durable chrome vanadium steel. Rubberized coatings provide a non-slip gripping surface. Flexible extension bars allow accessing fasteners at odd angles. Get a set with multiple length options. Using too long of an extension can reduce torque and power.

Customer Reviews

Kielder impact wrenches are highly rated by customers for their power and durability. Many users mention how impressed they are with the torque these tools can generate, making them ideal for tasks like loosening rusty bolts or lug nuts.

The wrenches receive consistently high ratings across retailer sites, with most models averaging 4+ stars out of 5. The Kielder KWT120 has a 4.7 star average based on over 500 reviews. Customers praise its "unmatched power" and ability to tackle "the toughest jobs".

Reviewers also comment on the durability and longevity of Kielder impact wrenches. An avid DIYer named Chris writes, "I've put my Kielder through heck for 3 years now and it still runs like new." Many owners mention still using their Kielder tool after 5+ years with no issues.

When it comes to drawbacks, some users report the tools being a bit heavy. But most don't mind the weight considering the power and say the ergonomic grip helps offset it. Noise is another downside, with the wrenches being quite loud when running.

Overall, customer satisfaction is very high with Kielder impact wrenches. The vast majority of buyers are impressed with their performance and say the investment is well worth it for the reliability and strength these tools provide.


What is a Kielder impact wrench?

A Kielder impact wrench is a powerful, high-torque power tool that uses sudden rotational force and hammering blows to loosen tight fasteners like nuts, bolts, and screws. They are commonly used in automotive repair and industrial settings.

What are the main features of a Kielder impact wrench?

Kielder impact wrenches feature variable speed triggers for precision control, robust brushed or brushless motors for durability, different torque settings, lightweight and ergonomic designs, quick-change chucks, and protective housing. Some models have LED lights and battery fuel gauges.

What types of batteries do Kielder impact wrenches use?

Most Kielder cordless impact wrenches run on lithium-ion battery packs in voltages ranging from 12V to 24V. Higher voltage batteries deliver more power and runtime. Kielder also offers AC corded electric impact wrenches.

What are the benefits of using a Kielder impact wrench?

Benefits include saving time and effort on stubborn fasteners, reaching high torque for heavy applications, accessing tight spaces, reduced user fatigue, and versatility to handle automotive, construction, industrial jobs. Cordless models provide portability.

When would someone need an impact wrench over a regular drill?

Impact wrenches are necessary for high torque applications like loosening rusty bolts, lug nuts, large fasteners that drills can't handle. They prevent damage to hardware and user injury.

What safety tips should I follow when using a Kielder impact wrench?

Wear eye and ear protection. Ensure correct socket fit to avoid slippage. Secure your workpiece properly. Don't overtighten. Maintain a firm grip. Allow the tool to work at its own pace. Take breaks to avoid repetitive motion injury.

How do I choose the right Kielder impact wrench for my needs?

Consider your application, speed/torque requirements, battery voltage if cordless, budget and features like LED lights. Higher voltage means more power. Get a suitable impact socket set. Ask a Kielder expert if uncertain.

Should I use an impact socket set with my Kielder impact wrench?

Yes, always use proper impact-rated sockets. Regular sockets can shatter under an impact wrench's force. Quality impact sockets withstand torque and hammering action.

How can I extend the life of my Kielder impact wrench?

Don't overload it. Use appropriate force. Maintain as per manual. Clean vents. Lubricate when required. Inspect components for damage. Use a holster to avoid drops. Store properly. Replace brushes if worn out.

Does Kielder offer warranties on impact wrenches?

Yes, Kielder offers warranties up to 3 years on impact wrenches covering defects in materials and workmanship. Warranty period varies by model. Register your tool at purchase to activate warranty. Provide proof of purchase for claims.