Festool Roundover Bit - HW D16.7mm R2mm - 491009

This bit is designed to create a smooth, rounded edge profile on wood, commonly used for furniture, cabinetry, and decorative crafts to soften sharp corners and improve aesthetics and safety.

You will need a router or trim router equipped with an 8mm collet to properly fit the 8mm shank of this bit.

Regular cleaning after use to remove wood resin and dust is recommended. Store the bit properly to protect its cutting edges. Sharpening is generally not feasible for Tungsten Carbide tipped bits of this type; replacement is typically required when dull.

Yes, this bit can be used on plywood and MDF. However, always use appropriate dust collection and consider making multiple shallow passes, especially on MDF, to achieve the best finish and avoid tear-out.

This bit creates a 2mm radius roundover.

The Festool 491016 is a different roundover bit with a larger cutting diameter (D38.1mm) and a larger radius (R12.7mm), offering a more substantial edge profile compared to the R2mm radius of the 491009.

Yes, this roundover bit features an integrated bearing guide that allows it to run along the edge of the material for consistent profiling.

Ensure the bit is sharp and free from resin buildup. Check router speed; too slow can cause burning, too fast can cause tear-out. Make shallow passes rather than one deep cut.

Clean the bearing carefully with a brush or mild solvent. Ensure no debris is obstructing its rotation. If damaged, the bearing may need replacement, though this bit is typically replaced as a unit.

Verify the bit is securely tightened in the collet. Ensure the bit is running true and not bent. Check router maintenance and bearing condition.

Double-check the depth setting on your router. Ensure the bearing is making proper contact with the edge of the workpiece. Adjust router base height or depth stop as needed.