- Item No: FES769942
- Weight: 2.36kg
- Dimensions: 920.00mm x 240.00mm x 80.00mm
- SKU: FES769942
- UPC: 4014549221617
Available Options
Festool FSK 420 Cross-Cutting Guide Rail 420mm
At a Glance: 420mm cross-cutting guide rail with -60° to +60° angle range, retract function and splinter guard
The Festool FSK 420 cross-cutting guide rail turns compatible Festool circular saws and plunge-cut saws into a portable, accurate and easy-to-use cross-cutting system. Designed for fast, repeatable straight and angled cuts, it connects to the saw with a quick-release fastener and returns the saw to the starting position after the cut. With an integrated splinter guard, adhesive cushion strips and smooth slideway lining, the FSK 420 is a compact but powerful guide rail solution for accurate trimming, board cutting and site work.
The FSK 420 combines with compatible Festool saws to create a mobile mitre-saw style system for precise, repeatable cross cuts and angle cuts. It is ideal when you need guided accuracy without carrying a stationary saw setup around the jobsite.
Product highlights
- 420mm cutting length Compact and practical for accurate cross cuts on boards, battens and sheet materials.
- Flexible angle range Adjustable from -60° to +60° for repeatable angled cuts.
- Quick-release saw connection Compatible saws connect quickly to form a single guided cutting unit.
- Automatic retract function Returns the saw to the starting position after the cut.
- Splinter guard Helps produce cleaner, splinter-free cuts along the scribe line.
- Fast workpiece positioning Place the rail on the material and cut accurately without lengthy setup.
Extra Information
- The FSK 420 is designed for selected Festool portable circular saws and plunge-cut saws.
- Compatible machines include HKC 55, HKC 55 K, HK 55, HK 85, TS 60 K and TSV 60 K.
- The rail connects to the saw using a quick-release fastener for fast setup and removal.
- The retract function brings the saw back to the start position after the cut.
- The adhesive cushion strips help protect the workpiece surface and improve rail grip.
- The included FSZ 120 fastening clamp can be used in the guide rail groove for extra secure fixing.
Pro Tips
- Use the locking angle positions for common repeat cuts to save time and improve consistency.
- Keep the adhesive cushion strips clean so the rail grips properly and does not mark the workpiece.
- Use the included clamp when cutting narrow, smooth or awkward materials where the rail could move.
- Let the retract function return the saw fully before lifting the system from the workpiece.
- For visible surfaces, align the splinter guard carefully with the marked cut line for the cleanest edge.
How to Use
- Check that the saw is compatible with the FSK 420 cross-cutting guide rail.
- Attach the saw to the rail using the quick-release fastener.
- Set the required cutting angle using the angle scale and locking positions where applicable.
- Place the guide rail on the workpiece with the splinter guard aligned to the cut line.
- Use the FSZ 120 fastening clamp if extra fixing is required.
- Start the saw and guide it smoothly through the cut along the rail.
- Allow the retract function to return the saw to the starting position after the cut.
- Switch off the saw and wait for the blade to stop fully before lifting the rail from the workpiece.
Features
- Cross-cutting guide rail system Designed for accurate cross cuts and angled cuts with compatible Festool saws.
- Quick-release fastener Allows the saw to be connected or removed from the rail quickly.
- Retract function Automatically returns the saw to the starting position after sawing.
- Adjustable mitre angle Allows flexible angle cuts from -60° to +60°.
- Locking positions Helps set common angles quickly and repeatably.
- Adhesive cushion strips Help protect the workpiece surface while keeping the rail positioned securely.
- Slideway lining Allows the saw to move smoothly along the guide rail.
- Fastening clamp compatible Secure fixing is possible using the included clamp in the guide rail groove.
Benefits
- Faster accurate cuts: The FSK rail can be placed directly on the workpiece for quick guided cross cutting.
- Repeatable angle work: The stop system and locking positions help produce consistent angle cuts again and again.
- Cleaner finish: The splinter guard supports the cut edge and helps reduce tear-out.
- Improved safety and control: The retract function returns the saw after the cut, keeping the cutting process controlled.
- Jobsite-friendly system: Creates a portable cross-cutting solution without needing a full mitre saw station.
Application
- Accurate cross cutting with compatible Festool saws
- Repeatable mitre and angle cuts
- Cutting boards, battens and panel materials
- Cutting insulation boards
- Trimming sheet material and construction boards
- Portable guided cutting on site or in the workshop
- Timber construction, carpentry, installation and renovation work
Safety
- Wear suitable eye, ear and dust protection when sawing.
- Make sure the saw is compatible and properly connected to the FSK rail before use.
- Check that the rail is stable on the workpiece before starting the cut.
- Use the fastening clamp where extra holding force is required.
- Keep hands clear of the saw blade and cutting path at all times.
- Allow the retract function to return the saw fully before lifting the system.
- Do not use the rail if it is damaged, bent or unable to guide the saw smoothly.
- Follow the operating instructions for the saw, saw blade and guide rail system being used.
Specifications
| Description | Spec |
|---|---|
| Brand | Festool |
| Cat No. | FES769942 |
| Order No. | 769942 |
| Model | FSK 420 |
| Product Type | Cross-cutting guide rail |
| Accessory Category | Guide rail system |
| Suitable For | HKC 55, HKC 55 K, HK 55, HK 85, TS 60 K, TSV 60 K |
| Cutting Length | 420 mm |
| Angular Range | -60° to +60° |
| Saw Connection | Quick-release fastener |
| Retract Function | Yes |
| Splinter Guard | Yes |
| Slideway Lining | Yes |
| Surface Protection | Adhesive cushion strips |
| Clamp Compatibility | Guide rail groove accepts fastening clamp |
| Main Application | Guided cross cuts and repeatable angle cuts |
In the box:
- 1 x Festool FSK 420 cross-cutting guide rail
- 1 x FSZ 120 fastening clamp