Introducing the AG 4S-A22

Enjoy Hilti 4-inch metal cutting experience

Improve your cutting productivity with an angle grinder designed with you in mind

The slim, light and balanced AG 4S-A22 is designed with a slimmer grip to sit in your hand better - giving you the responsive handling you need. Add the SPX series cutting discs to your toolbox for more cuts per disc, and keep your productivity up during the day with our long lasting 22V Li-ion battery platform

Suitable for a broad range of materials

The AG 4S-A22 is suitable for grinding metal sheets


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

Stainless steel

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

Carbon steel

Grinding concrete with the AG 4S-A22


Compact and balanced design with the AG 4S-A22 cordless angle grinder

Compact and balanced design

The low-weight, small body and ergonomic design help to improve handling for medium- to heavy-duty grinding and finishing. The slim barrel grip makes it easier to hold and control when undertaking fine grinding.


Variable speed dial makes it the ideal choice for stainless steel

Variable speed dial

The 6-step variable speed dial lets you select the disc speed needed to grind carbon steel and stainless steel, while the brushless motor and Hilti 22V batteries give you reach and performance you can depend upon.

Lock-on switch

Lock-on switch

A lock-on switch means the tool is always working without the need to hold down a button. This reduces operator arm-strain and allows the angle grinder to keep grinding when you change position or grip.

The AG 4S-A22 includes a fast blade stop which contributes to job site safety

Safety features

Active Torque Control (ATC), Active Vibration Reduction (AVR) and a fast-acting disc stop mean you can work faster while keeping the grinder under control, contributing to additional safety on the job. 

AG 4S Cordless Angle Grinder

Versatile, flexible and powerful

A flexible addition to your workbench, the AG 4S-A22 is fully compatible with our range of 22V batteries and chargers and can be used with will all existing 4" cutting and grinding discs.

Speed control for working with stainless steel

The AG 4S-A22 includes a 6-step speed control letting you select the disc rotation speed, from 3,000 - 8,000 rpm, to match the needs of your application. This is especially important when working with abrasive inserts on stainless steel (inox), where the speed dial is key to:

  • Better results – because you have precise control of the abrasiveness
  • Faster progress – because skilled metalworkers can adjust the tool to suit their most effective technique
  • Flexibility – because you can adjust the speed to suit your material and application

The AG 4S-A22 uses an optimized air-flow system to cool the angle grinder and electronics which results in increased service life. 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 working days – all at no cost, and giving you peace of mind.

AC-D 4” Cutting Disc

Best partner with AG 4S

AC-D SPX is an ultimate abrasive cutting disc for metals offering extra-long lifetime and extra-high cutting speed.

Cutting metals in the form of rebar, channels, angle profiles, pipes and sheet

AC-D SPX offers enhanced lifetime and cutting speed thanks to premium grit, optimized disc composition and thickness, recommended for use with cordless angle grinders.

Precise cuts could be made based on fast cutting speed and lower vibration.

AC-D SPX is recommended for cutting stainless steel because high cutting speed creates less heat.

Please enter Alternative Text here (optional)

Greater performance with Hilti 4 inch metal cutting system

AG 4S-A22 cordless angle grinder

AG 4S-A22 Cordless Angle Grinder

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

Cutting discs

Premium abrasive thin cutting disc for faster cutting.

Order Now
The B22/5.2Ah 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.

Order Now
Helping you with your daily business


Services to keep you performing

Unforeseen or hidden factors like lost or damaged tools and repair costs can lead to serious productivity issues on the jobsite.

Our service offerings help you avoid these additional costs and keep you working.

Dedicated customer service agent just a phone call away


Whatever the job, wherever you are, our teams are always available to help you get the job done

We have dedicated account managers and technical consultants who will meet you directly at the jobsite and offer solutions instantly.

Our customer service agents can provide information, take orders, arrange deliveries and repairs all in just one phone call. And, you have instant access to our products at our many Hilti Stores, where you can try out our tools and inserts and get further advice.