We don't just sell router bits - we design them.
Every bit in our Two Flute Range is manufactured from Micro-Grain Solid Carbide™. The carbide grain structure sits between 0.5 and 0.8 microns, considerably finer than standard carbide. This finer grain produces a sharper cutting edge, improved edge retention, and a cutter that is significantly more resistant to chipping and snapping under load.
Every tool is engineered by our UK-based team of tool designers with one objective: maximise tool life while reducing the chance of breakages in demanding CNC applications.
Every order also includes:
✓ 60 Day Money Back Guarantee. If you're not happy with the performance, we'll refund you in full.
✓ Personalised feeds and speeds, emailed within 5 minutes of ordering so you're machining with the correct settings from your very first cut.
✓ Same day dispatch from our Manchester warehouse, with next day delivery available throughout the UK.
✓ Free UK delivery on all orders over £100.
Two Flute Compression Cutter
Compression cutters combine both up-cut and down-cut flute geometry into a single tool, allowing them to produce clean top and bottom edges in one pass.
If you're machining plywood, melamine, MDF with laminate faces, or veneered sheet materials, compression cutters are the industry standard for achieving clean, professional edge quality on both faces of the material.
How Compression Cutters Work
• Down-cut flutes at the top compress the fibres, protecting the top surface from chip-out.
• Up-cut flutes at the bottom pull chips away from the cut, leaving a clean bottom edge and improving chip evacuation.
Once both flute sections are fully engaged in the material, the cutter leaves a clean finish on both faces—something neither an up cutter nor a down cutter can achieve on its own.
Important: Compression cutters require sufficient depth of cut to perform correctly. Shallow passes may only engage the down-cut section, preventing the compression geometry from working as intended.
Best For:
• Plywood and birch ply
• Melamine-faced chipboard (MFC)
• Laminated MDF
• Veneered sheet materials
• High-quality production cutting
Use a Compression Cutter when:
You need the cleanest possible finish on both the top and bottom surfaces of your material.
Two Flute Up Cutter
Up-cut CNC bits are designed to pull chips upward and out of the cut, making them the go-to choice for efficient material removal, deep cuts, and slotting operations.
If you're cutting hardwood, plastics, or aluminium—and need to keep the cut clear and the tool cool—an up-cut spiral is usually the right place to start.
Why choose an up cutter?
• Clears chips efficiently to reduce heat build-up.
• Ideal for deep cuts, slotting, and pocketing.
• Performs well in hardwoods, plastics, and soft metals.
Because chips are lifted out of the cut, up-cut bits leave a cleaner edge on the bottom of your material, but may cause slight tear-out on the top surface—especially in plywood or veneered materials.
Two Flute Down Cutter
Down-cut CNC bits push material fibres downward into the cut, producing clean, crisp top edges—especially important when working with plywood, laminates, and veneered materials.
If surface finish matters on the top face, a down-cut spiral is often the best choice.
Why choose a down cutter?
• Produces clean top edges with minimal tear-out.
• Ideal for plywood, MDF, and veneered materials.
• Great for shallow passes and finishing cuts.
Because chips are forced downward, down-cut bits can trap heat and chips in deeper cuts. For this reason, they're typically best used for shallow passes or applications where top surface finish is the priority.
Best For:
• Plywood and veneered sheet goods.
• Clean top-edge finishes.
• Finishing passes.
Two Flute Ball Nose Cutter
Ball nose CNC bits feature a rounded cutting tip, making them the preferred choice for 3D carving, contouring, engraving, and machining smooth curved surfaces.
If you're producing signs, moulds, relief carvings, or complex 3D toolpaths, a ball nose cutter delivers a smoother finish than a flat end mill and reduces visible step-over marks.
Why choose a ball nose cutter?
• Produces smooth 3D contours and curved surfaces.
• Ideal for carving, engraving, mould making, and finishing operations.
• Reduces visible tool marks when machining complex shapes.
Because the cutting edge is rounded, ball nose cutters are not designed to leave sharp internal corners or flat-bottomed pockets. Instead, they excel wherever a smooth surface finish and flowing curves are required.
Best For:
• 3D carving and relief work.
• Signs and decorative machining.
• Moulds and patterns.
• Contoured surfaces.
• Finishing 3D toolpaths.
Lifetime Surfacing Bit
Surfacing bits are designed to flatten spoilboards, level workpieces, and rapidly remove material across large surfaces. Replaceable carbide inserts mean you only replace the cutting edges—not the entire tool.
Why choose a lifetime surfacing bit?
• Replaceable carbide inserts reduce tooling costs.
• Machines large surfaces quickly and consistently.
• Leaves a smooth, flat finish.
Best For:
• Surfacing spoilboards.
• Flattening timber slabs.
• Levelling workpieces.
Need more information? Email: info@routerbits.co.uk