- Stock: In Stock
- Brand: FESTOOL
- Model: FES491017 358664
- Weight: 0.12kg
- Dimensions: 102.00cm x 53.00cm x 53.00cm
- SKU: FES491017
- UPC: 4014549001240
Festool HW S8 D42,7/R15 KL Roundover Cutter
At a Glance: Professional carbide-tipped R15 roundover cutter with an 8 mm shank, 42.7 mm cutter diameter and interchangeable ball-bearing guidance. Use the ø12.7 mm bearing for a classic 15 mm edge radius or the smaller ø9.5 mm bearing to create a decorative round-edge profile.
The Festool HW S8 D42,7/R15 KL is a versatile professional roundover cutter designed for profiling solid wood and panel materials with a clean, consistent 15 mm radius. Its two precision carbide cutting edges provide excellent durability and smooth cutting performance, while the integrated ball-bearing guidance allows the cutter to follow straight or curved workpiece edges without requiring a separate guide fence. Festool has made this cutter particularly flexible by allowing the guide bearing to be changed: with the ø12.7 mm ball bearing it produces a conventional rounded edge, while fitting the smaller ø9.5 mm bearing changes the cutting relationship and allows a decorative round-edge or bead-style profile to be routed. The bearing is retained by a screw for quick and straightforward replacement. With its 8 mm shank, 42.7 mm cutting diameter, 22 mm cutting length and 62 mm overall length, the cutter is suitable for Festool OF 900, OF 1000, OF 1010, OF 1010 R, OF 1400, OF 2000 and OF 2200 routers.
The guide bearing determines how deeply the cutter enters the edge of the workpiece. With the standard ø12.7 mm bearing, the HW S8 D42,7/R15 KL produces its conventional R15 rounded profile. Changing to the smaller ø9.5 mm guide bearing allows the cutter to engage farther into the workpiece, creating a more decorative round-edge profile. This makes one cutter considerably more versatile than a fixed-profile roundover bit.
Product highlights
- 15 mm rounding radius: Produces a generous R15 profile suitable for furniture, joinery, shelving and substantial timber edges.
- 42.7 mm cutter diameter: Large profile cutter designed specifically around the 15 mm radius geometry.
- Two carbide cutting edges: High-quality carbide provides excellent wear resistance and a long professional service life.
- Ball-bearing guided: The cutter follows the workpiece edge directly without needing a separate side fence for suitable applications.
- ø12.7 mm bearing for rounding: Creates the conventional smooth R15 roundover profile.
- ø9.5 mm bearing for decorative profiling: Allows the cutter to produce a deeper round-edge or bead-style decorative profile.
- Quick bearing replacement: The guide bearing is secured by a screw for fast, efficient changing.
- 8 mm shank: Compatible with the appropriate 8 mm collet in a wide range of Festool routers.
- 22 mm cutting length: Provides ample working height for profiling substantial workpiece edges.
- Suitable for curved work: Bearing guidance enables the cutter to follow both straight and shaped workpiece edges.
- Solid wood and panel materials: Festool specifies the cutter for profiling both natural timber and suitable board products.
Product Compatibility
- Festool OF 900
- Festool OF 1000
- Festool OF 1010
- Festool OF 1010 R
- Festool OF 1400
- Festool OF 2000
- Festool OF 2200
Compatibility note: The cutter has an 8 mm shank. Make sure the router is fitted with the correct Festool 8 mm collet and that the machine is suitable for the cutter's 42.7 mm diameter before use.
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Features
- Carbide cutting edges: Two durable HW cutting edges provide clean routing and long edge life.
- R15 profile: Creates a substantial 15 mm-radius rounded edge.
- Interchangeable bearing system: Different guide-bearing diameters allow different profiles to be produced with the same cutter.
- Screw-secured bearing: Makes guide-bearing changes quick and straightforward.
- 8 mm cylindrical shank: Designed for compatible Festool router collets.
- 42.7 mm diameter: Precision cutter geometry matched to the specified R15 profile.
- 22 mm cutting length: Provides useful profiling depth for furniture and joinery applications.
- 62 mm overall length: Compact geometry suitable for controlled handheld routing.
- Bearing-guided operation: Allows direct profiling of appropriately prepared workpiece edges.
Benefits
- Beautiful rounded edges: Transforms sharp square edges into a smooth R15 profile that is both attractive and comfortable to touch.
- More profiles from one cutter: Changing the guide-bearing diameter alters the finished profile without requiring a second cutter.
- Consistent profile depth: The bearing follows the workpiece edge and keeps the cutter position constant.
- Excellent on curved shapes: The guide bearing can follow contours that would be awkward to reproduce accurately with a straight fence.
- Long working life: Carbide cutting edges withstand far more professional use than ordinary high-speed-steel profiles.
- Fast setup: Bearing-guided routing can eliminate the need for additional guide fences in suitable edge-profiling applications.
- Festool system compatibility: Works across several generations of Festool OF routers equipped with the correct 8 mm collet.
Application
- Rounding solid-wood edges.
- Profiling panel materials.
- Creating R15 furniture edges.
- Routing decorative edge profiles.
- Furniture manufacture.
- Cabinetmaking.
- Joinery.
- Table tops and shelving.
- Worktops and timber components where suitable.
- Profiling straight edges.
- Profiling curved and shaped workpieces.
- Interior fitting and bespoke woodworking.
Extra Information
- What does HW mean? HW is Festool's designation for carbide cutting material. Carbide retains a sharp cutting edge for a long time and is particularly suitable for professional routing.
- What does S8 mean? S8 indicates an 8 mm-diameter cutter shank.
- What does D42,7 mean? D identifies the cutter diameter, which is 42.7 mm.
- What does R15 mean? R15 identifies the 15 mm radius produced by the cutter when configured for normal rounding.
- What does KL mean? The KL designation identifies this cutter as a ball-bearing-guided profile cutter.
- What is NL? NL is the cutting or working length of the profile. For this cutter it is 22 mm.
- What is GL? GL is the total overall length of the cutter, which is 62 mm.
- Why use a ball bearing? The bearing runs directly against the workpiece edge and controls how far the cutter enters the material. This makes it possible to follow straight and curved edges without relying solely on a router fence.
- ø12.7 mm bearing: Festool specifies the 12.7 mm guide bearing for conventional rounding of workpiece edges.
- ø9.5 mm bearing: With the smaller guide bearing installed, Festool states that a decorative round-edge profile can be routed.
- Why does the smaller bearing change the profile? Because its outside diameter is smaller, the cutter moves farther into the edge of the workpiece before the bearing makes contact. This exposes more of the cutter profile and creates the decorative secondary form.
With the ø12.7 mm guide bearing, the cutter removes the sharp corner and produces the clean R15 quarter-round profile normally associated with a roundover cutter. Replacing it with the smaller ø9.5 mm bearing allows more of the cutter to enter the timber, extending the profile beyond a simple quarter-round and creating a decorative bead-like edge. This ability to change the finished appearance simply by changing the bearing is one of the strongest features of this Festool cutter.
A 42.7 mm profile cutter removes significantly more material than a small edge bit. Festool uses two carbide cutting edges to maintain sharpness, clean cutting and useful service life under professional conditions. Keeping those edges clean and sharp is particularly important when routing visible furniture profiles.
Pro Tips
- For a full R15 profile, make sure the workpiece is thick enough to accommodate the radius without producing an unwanted step or cutting into an adjoining face.
- On demanding hardwoods or where a large amount of material must be removed, make the profile in more than one pass rather than forcing the full cut at once.
- Route external edges against the cutter's rotation according to the router manufacturer's instructions for safe, controlled conventional routing.
- Make a test cut on an offcut before profiling the finished component, particularly when changing between the 12.7 mm and 9.5 mm bearings.
- Inspect the guide bearing before every job. It should rotate freely without excessive play, roughness or noise.
- Keep resin and adhesive deposits off both the carbide edges and ball bearing. Build-up can affect finish quality and bearing rotation.
- Do not allow the guide bearing to run over rough defects, protruding fasteners or glue lumps that could disturb the finished profile.
- Where end grain is being routed, use light passes to reduce the chance of breakout.
- For rectangular components, routing the end-grain edges first can allow any minor breakout at the corners to be cleaned up when the long-grain edges are subsequently routed.
- Use effective dust extraction. Large profile cutters can produce considerable chips and fine dust.
- If the cutter starts requiring noticeably more feed pressure or leaves burn marks, inspect the carbide edges for resin build-up or dullness.
- Have carbide cutters professionally sharpened when necessary so the original profile geometry remains accurate.
How to Use
- Disconnect the router from the power supply before fitting or adjusting the cutter.
- Check that the router is suitable for the 42.7 mm cutter diameter and is fitted with the correct 8 mm collet.
- Inspect the cutter, carbide cutting edges and guide bearing for damage or excessive wear.
- Choose the appropriate guide bearing for the required profile.
- Use the ø12.7 mm bearing for the standard R15 rounded edge.
- Use the ø9.5 mm bearing when the deeper decorative round-edge profile is required.
- Insert the 8 mm shank into the router collet to the correct depth, without clamping on the transition between the shank and cutter body.
- Tighten the collet securely according to the router operating instructions.
- Adjust the cutter height to suit the desired profile.
- Make a test cut on scrap material of the same thickness and inspect the resulting shape.
- Secure the finished workpiece firmly.
- Connect suitable dust extraction.
- Allow the router to reach full operating speed before bringing the cutter into contact with the workpiece.
- Guide the router smoothly so the bearing remains in continuous contact with the workpiece edge.
- Use several progressive passes if the full profile requires substantial material removal.
- Allow the cutter to stop completely before placing the router down or making adjustments.
Specifications
| Description | Spec |
|---|---|
| Brand | Festool |
| Cat No. | FES491017 |
| Festool Order No. | 491017 |
| Product Type | Ball-Bearing-Guided Roundover Cutter |
| Model | HW S8 D42,7/R15 KL |
| Cutting Material | Carbide (HW) |
| Number of Cutting Edges | 2 |
| Shank Diameter (s) | 8 mm |
| Cutter Diameter (D) | 42.70 mm |
| Cutting Length (NL) | 22.00 mm |
| Overall Length (GL) | 62.00 mm |
| Radius (R) | 15.00 mm |
| Guidance | Ball Bearing |
| Guide Bearing for Standard Rounding | ø12.7 mm |
| Guide Bearing for Decorative Profile | ø9.5 mm |
| Bearing Attachment | Screw-Fixed, Replaceable |
| Suitable Materials | Solid Wood and Panel Materials |
| Compatible Routers | OF 900, OF 1000, OF 1010, OF 1010 R, OF 1400, OF 2000, OF 2200 |
| EAN / Barcode | 4014549001240 |
| Quantity | 1 Cutter |
Scope of Delivery:
- 1 x Festool HW S8 D42,7/R15 KL roundover cutter
- 1 x ø12.7 mm ball-bearing guide
- 1 x ø9.5 mm ball-bearing guide
Safety
- Disconnect the router from the mains supply before fitting, removing or adjusting the cutter.
- Wear suitable eye, hearing and respiratory protection during routing.
- Use the cutter only in routers suitable for its 8 mm shank and 42.7 mm cutter diameter.
- Make sure the cutter shank is clean, undamaged and correctly secured in the router collet.
- Never clamp the cutter on the transition between the shank and cutter body.
- Inspect both carbide cutting edges before use. Do not operate a cutter with cracked, chipped or missing carbide.
- Check that the guide bearing turns freely and is securely fastened before starting the router.
- Never use a seized or badly worn guide bearing.
- Secure the workpiece firmly before routing.
- Keep hands clear of the cutter and cutting path at all times.
- Use controlled conventional routing in the feed direction specified by the router manufacturer. Avoid uncontrolled climb cutting.
- Do not remove excessive amounts of material in a single pass. Use several passes where necessary.
- Do not exceed the permissible rotational speed for the cutter or the router manufacturer's recommendations for a cutter of this diameter.
- Allow the cutter to reach operating speed before entering the material.
- Never change a guide bearing while the cutter is fitted to a connected router.
- Allow the cutter to stop completely before setting the router down or making adjustments.
- Carbide cutting edges and bearings may become hot during use. Allow the cutter to cool before handling.
- Use suitable extraction for wood and panel-material dust and follow all applicable material safety requirements.
