Product Description
Why an angle grinder is on a CCTV supplier's shelf
Installers use a 125 mm angle grinder like the Hilti NURON AG 4S-22 for the messy prep work around a camera job — chasing cable routes into brick or block, cutting bracket fixings to size, or trimming conduit and steelwork before a mount goes up. It's not a CCTV product itself, but it's the tool many installers reach for on-site.
What it actually does
The AG 4S-22 is cordless, running on Hilti's 22V NURON battery system rather than mains power — useful in lofts, plant rooms or outdoor locations where a socket isn't nearby. A brushless motor and speed control from 3,400 to 7,600 rpm across six gears let you switch between rough material removal and finer finishing, including on stainless steel, without changing tools.
Key specs
- Disc diameter: 125 mm, max cutting depth 34 mm
- Rated voltage: 21.6 V (NURON battery platform)
- Weight: 2.1 kg without battery
- Dimensions: 321 x 83 x 133 mm
- Noise/vibration: 83 dB(A) sound pressure; 5.4 m/s² vibration (grinding)
- Safety: Active Torque Control (ATC) helps limit kickback if the disc binds; lock-on switch on a contoured, slimline handle
Note this listing is for the grinder body with case — check separately whether a NURON battery and charger are included before buying, as none are listed here.
Technical Specifications
Frequently Asked Questions
Does this listing include a battery and charger?
The listing describes the grinder body with case; it doesn't state a battery or charger is included, so check this before ordering.
What disc size does the AG 4S-22 take?
It's built for 125 mm discs, with a maximum cutting depth of 34 mm.
Is this grinder corded or cordless?
Cordless — it runs on Hilti's 21.6V NURON battery system rather than mains power.
How fast does it spin?
Speed is adjustable across six gears from 3,400 rpm up to 7,600 rpm, so you can go gentle on finishing work or faster for material removal.
