Hilti Launches New 4-1/2” Cordless Angle Grinder

Hilti Releases AG 4S-A22 4-1/2” 22V Angle Grinder

Everybody that is around tools for a living know that cordless power tools are quickly replacing their corded cousins on job sites everywhere. Hilti recently announced a new 22V cordless angle grinder that is aimed at replacing their corded options.


Disc Diameter: 5” Max

Voltage: 22V

Spindle Thread: 5/8”

Variable Speed Range: 3500-8500 RPM

Trigger Type: Lockable On/Off

Warranty – Hilti 20-2-1 Warranty



The AG 4S-A22 4-1/2” 22V Angle Grinder is powered by Hilti’s 22V battery and can accept grinding and cutting discs up to 5” in diameter. With a brushless motor and upgraded electronics, Hilti promises cord-like power, without the hassle. A variable speed dial allows the user to adjust the RPM’s to fit the application allowing the grinder to be used on a myriad of metals and building materials.


Angle grinders are notoriously dangerous, so Hilti has addressed some of these concerns with the AG 4S-A22. Equipped with a blade/disc brake and Hilti’s Active Torque Control technology, users can work both efficiently and safely. The blade brake is also particularly handy for unintentionally marring surfaces.


Hilti has designed this tool for the user that works with angle grinders for long periods of time. They have updated their grip with a slimmer design and included a lockable on/off switch for comfort when grinding for longer periods of time.

Who Is This Grinder For

Hilti has long been known for their commitment to quality tools and customer service. This tool was aimed at the professional tradesman or woman looking to replace a corded grinder for the convenience and portability of a cordless platform.

The Hilti Hilti AG 4S-A22 4.5″ Cordless Angle Grinder can be had for around $189.

About the author

Will Endicott

William Endicott is a licensed contractor in the State of Missouri and is the principal of a custom home building and renovation company. After attending the University of Kansas, he began working full time in the trades and soon after, started his own company. As a second generation carpenter, William grew up around job sites and discovered his love of tools. He now enjoys finding tools that help give his clients the best possible quality, while also helping to keep his company productive and profitable. In his spare time, he enjoys woodworking projects, fishing and spending time with his wife and three children.

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