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Features & Applications

  • Brushless motor – lasts up to three times longer (no commutator to damage and no carbon brushes to change)
  • Very slim design with lock-on switch – this cordless angle grinder fits firmly in your grip, for more comfortable handling and precise control even in hard-to-reach places
  • Precise speed control from 3400-7600 rpm – you can use higher speeds to cut and grind very quickly, while the lower speeds help you to achieve a perfect surface finish
  • Active Torque Control (ATC) stops the tool body from spinning uncontrolledly if the disc jams – helping to reduce a common safety hazard
  • Cordless tool platform – the same battery for all your 22V Hilti tools
  • Cutting and grinding steel, stainless steel and other metals
  • Finishing metal
  • Deburring and polishing metal
  • Cutting and grinding mineral materials
  • Cutting tiles using continuous-rim diamond discs


Hilti Tool Service
Hilti Tool Service

3 days or free

  • Servicing is free of charge for up to 1 year, including wear and tear, pick-up and delivery
  • After 2 years repair costs are capped
  • Product warranty against parts and manufacturing irregularities for 20 years
More information about Tool Services
Fleet Management
Fleet Management

We manage your tools so you can manage your business.

  • Monthly usage fee covering all tool, service and repair costs helping to ensure absolute cost control and back-office efficiency.
  • Theft coverage helps to reduce financial risk and unexpected expenses.
  • Individual labels and online visibility provide tool fleet transparency
  • Loan tools during repair to reduce downtime.
  • High-performing tools and latest technology help to increase jobsite productivity.
More information about Fleet Management

Technical Data

Documents & Videos

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The new AG 4S-A22 cordless angle grinder raises the bar for speed and handling

Whether cutting rebar, tubes or sheets, deburring, surface cleaning or removing welds, it requires steady grip to get a good result. The slim, light and balanced AG 4S-A22 is designed to sit firmly in your hand – giving you the responsive handling you need. 

Suitable for a broad range of materials

Grinding concrete with the AG 4S-A22


The AG 4S-A22 is ideal for carbon steel applications

Carbon steel

The AG 4S-A22 has a variable speed dial for stainless steel grinding

Stainless steel

The AG 4S-A22 can easily cut through metal piping or sheets


Versatile, powerful and flexible cordless angle grinder

Versatile, flexible and powerful

The new AG 4S-A22 cordless angle grinder is the perfect addition to your workbench, it's fully compatible with our range of 22V batteries and chargers and can be used with all existing cutting and grinding discs up to 125 mm.

Speed control for working with stainless steel

The AG 4S-A22 cordless angle grinder includes a 6-step speed control letting you select the disc rotation speed, from 3,500 - 8,000 rpm, to match the needs of your technique, application and materials. This is especially important when working with abrasive inserts on stainless steel (inox), where the speed dial can give you precise control of the abrasiveness.

The AG 4S-A22 cordless angle grinder has an optimised airflow system allowing it to cool down, which increases the lifetime of the tool. As you'd expect, all Hilti cordless tools come with 2 years of wear-and-tear coverage and, if your tool does break, we’ll repair it within 3 days – all at no cost, giving you complete peace of mind.

a broad range of bonded and coated abrasive discs

Ultimate flap disc with cooling coating for light grinding on stainless steel

Flap discs

Ultimate flap disc with cooling coating for light grinding on stainless steel.

Ultimate abrasive grinding disc for metals featuring super-high removal rate and extra-long lifetime

Grinding discs

Ultimate abrasive grinding disc for metals featuring super-high removal rate and extra-long lifetime.

Ultimate abrasive cutting disc for metals offering extra-long lifetime and extra-high cutting speed

Cutting discs

Ultimate abrasive cutting disc for metals offering extra-long lifetime and extra-high cutting speed.

The new B22 4.0Ah battery is the ideal solution for the AG 4S-A22

B 22/5.2 Ah Battery

Powerful yet lightweight 22V Li-ion battery offering high power for convenience and performance.

Create your cordless set today


No matter what kind of projects you work on or which trades you specialise in, Hilti has the cordless configurator to help you get the job done. Choose an application and we'll show you the right tools for the job.

Find out more
cordless vacuum

VC 5-A22 Cordless dry vacuum

Combining strong performance with jobsite mobility.

Check it out
Request a demo

Put our tools to the test

See how your existing cordless tools perform against our equivalent Hilti innovation. Bring your tools and we'll bring the rest. Base materials, inserts and of course Hilti tools, to perform a real-life comparison.

Request a demo
Click & Collect

In a hurry

With our Click & Collect service you can now order online and pick up your items from your nearest Hilti Store just 1 hour later – anytime during opening hours.

Learn about Click & Collect
Hilti Tool Service

Hilti tool service

When you buy a Hilti tool, you get more than just a tool. You also get the super fast Hilti tool repair service. At Hilti we’ll repair your Hilti tool within 3 days or repair it free of charge.

Find out more
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