The Festool HKC 55 KEB-Basic-FSK 420 cordless circular saw is built for professionals who need precise, repeatable cuts wherever the job takes them. Whether working on roofing, timber framing, or general construction, this powerful cordless saw combines flexibility, accuracy and mobility with Festool’s intelligent guide rail system.
Powered by a high-performance brushless EC-TEC motor running at 5,200 rpm, the saw delivers outstanding cutting performance and endurance when paired with Festool Li-HighPower batteries. The included FSK 420 cross-cutting guide rail transforms the saw into a mobile mitre saw system, enabling fast, perfectly repeatable cross-cuts and angled cuts directly on site.
Designed with safety and efficiency in mind, features such as KickbackStop, a built-in guide wedge, pendulum hood remote control and spring-assisted plunge cutting ensure controlled handling and safer operation. Thin-kerf 1.6 mm blades maximise efficiency while extending battery runtime, making the HKC 55 K an ideal solution for demanding everyday cutting applications.
Key Features
- FSK 420 cross-cutting system – Mobile mitre saw functionality for fast, precise cross-cuts anywhere.
- Brushless EC-TEC motor – 5,200 rpm performance for powerful and efficient cutting.
- KickbackStop protection – Reduces risk of injury by minimising kickback during sawing.
- 1.6 mm thin-kerf blades – Faster cuts with improved battery life and reduced effort.
- Spring-assisted plunge function – Smooth and controlled plunge cutting adjustment.
- Pendulum hood remote control – Safe and convenient blade guard operation.
- Precision mitre adjustment – Accurate angled cuts from 0° to 50°.
- Smart connectivity – Access tool data, battery status and updates via the Festool app.
Technical Data
| Battery Voltage | 18 V |
| Idle Speed | 5,200 min⁻¹ |
| Saw Blade Diameter | 160 mm |
| Angular Range | 0 – 50° |
| Cutting Depth (90°) | 0 – 55 mm |
| Cutting Depth (45° / 50°) | 42 / 38 mm |
| Dust Extraction Connection | 27 / 36 mm |
| Guide Rail Cutting Length | 420 mm |
| Guide Rail Angle Range | -60° to +60° |
| Guide Rail Weight | 1.26 kg |
| Sound Pressure Level (LpA) | 91 dB(A) |
| Sound Power Level (LWA) | 99 dB(A) |
| Drive Type | Battery |



































