Description
The fastest SDS-Plus hammer drill in its class, for maximum productivity
Capable of delivering 2.5 J of impact energy with minimal vibration
Capable of drilling up to 125 ⌀10 x 50 mm holes on a single battery charge
AUTOSTOP™ system switches off the tool to protect the user in the event of sudden rotations
Included in the set: Charger, 2 x 5.5 Ah batteries, Depth gauge, 13 mm metal chuck, Carrying case
Milwaukee M18 ONEFHX-552X SDS-Plus Hammer with One-Key
The Milwaukee M18 ONEFHX-552X hammer is the fastest SDS-Plus hammer in its class, thanks to an impact energy of 2.5 J and low vibration (12.9 m/s²). With the High Output 5.5 Ah battery, it can drill up to 125 Ø 10 × 50 mm holes on a single charge. The AUTOSTOP™ function automatically stops the tool if it jams to protect the operator. One-Key™ integration enables digital tool management, tracking, and customization of settings. The FIXTEC™ system allows for quick changes between the SDS-Plus chuck and the 13 mm chuck.
Technical Specifications
Technical Data Milwaukee M18 ONEFHX-552X
| Hook Type |
SDS-Plus |
| Impact Energy |
2.5 J |
| No-Load Speed |
0–1330 rpm |
| Impact Rate |
0–4800 rpm |
| Max. Drilling Wood |
28 mm |
| Maximum hole in metal |
13 mm |
| Maximum hole in concrete |
26 mm |
| Optimal range |
6–20 mm (concrete) |
| Vibration (drilling) |
12.9 m/s² (uncertainty 1.5 m/s²) |
| Vibration (chisel) |
14.2 m/s² (uncertainty 1.5 m/s²) |
| Weight with battery |
4.5 kg (with 5.5 Ah batteries) |
| Battery type |
Li-ion 18 V (High Output) |
| Other functions |
AUTOSTOP™, One-Key™ with tracking and customization |
| Included accessories |
2 × M18 HB5.5 Ah batteries, M12-18 FC charger, SDS-Plus chuck, 13 mm chuck, Heavy-Duty case |
Technology Milwaukee M18 FUEL: Motor, Electronics, and Battery
Milwaukee M18 FUEL products are based on three technological pillars that work in synergy:
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POWERSTATE™ brushless motor: offers greater power, longer life, and a compact size compared to brushed motors.
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REDLINK PLUS™ electronics: digitally controls power output, protecting the tool and battery from overload and overheating.
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REDLITHIUM-ION™ battery: provides longer runtime and improved heat management, ensuring consistent performance even under heavy loads.
The combination of these three elements allows FUEL tools to offer extreme performance, often replacing corded power tools in professional applications.
