Cutter assistance guide

Find the right cutter starting point.

Use the guide below to narrow your options by material, finish, chip clearance and flute count. Then browse the matching range or contact us if your setup needs checking.

Important: This guide gives sensible starting points, not blind guarantees. Cutter choice still depends on your machine, speed, feed, rigidity, depth of cut and workholding.
Guided cutter choice CNC cutter guide image
Start with the job Material, finish and chip clearance point the way.

This page gives starting points, then helps unsure buyers build a useful request before ordering.

Step 1

Start with what matters most.

Pick the question closest to your job. Each route points you toward a cutter style to start looking at.

Guide by material

MDF / plywood / timber Start by looking at: 2 flute, compression, upcut or downcut

Choose based on whether chip clearance, top-edge finish or both-edge finish matters most.

View route →
Laminated boards Start by looking at: compression cutter

Often used when both top and bottom edge finish matter on sheet material.

View route →
Acrylic / plastics Start by looking at: single flute / O-flute style cutter

Plastics usually need good chip evacuation and reduced heat build-up.

View route →
Aluminium / non-ferrous Start by looking at: single flute or aluminium-specific cutter

Chip evacuation, rigidity and lubrication matter heavily. Setup is critical.

View route →

Guide by finish or cutting result

Best top-edge finish

Start by looking at: Downcut

Pushes chips downward and can improve top surface finish, depending on material and setup.

Better chip clearance

Start by looking at: Upcut

Pulls chips upward and can help clearing the cut, especially in deeper passes.

Cleaner top and bottom edges

Start by looking at: Compression

Often used for laminated or veneered sheets where both faces matter.

Simple straight flute style

Start by looking at: Straight

Use when you specifically need a straight flute style and know the size required.

Guide by chip clearance

Need chips pulled out of the cut?

Start by looking at upcut cutters.

They can help evacuation, but may affect top-edge finish depending on material and setup.

Need to reduce heat in plastics?

Start by looking at single flute / O-flute style cutters.

Chip clearance and heat control are usually key.

Cutting deeper slots or pockets?

Chip evacuation becomes more important.

Cutter diameter, pass depth and machine rigidity matter more as the cut gets deeper.

Getting burning, melting or poor finish?

The cutter may not be the only issue.

Feed, speed, pass depth, sharpness and chip evacuation should all be checked.

Guide by flute count

1 flute Common starting point: plastics, aluminium/non-ferrous, chip evacuation

Often useful where clearing chips and reducing heat is important.

Shop 1 flute →
2 flute Common starting point: general CNC routing and many wood-based jobs

A common starting point for many users, depending on cutter style and size.

Shop 2 flute →
3 flute Common starting point: more specialised applications

Can be useful where the setup and material suit the extra cutting edges.

Shop 3 flute →
4 flute Common starting point: specialist finish/tooling requirements

Usually more setup-dependent; not always the best starting point for routers.

Shop 4 flute →

Step 2

Check the setup before you choose.

The same material can require different cutters depending on the job. Use this checklist before ordering.
01Material and thickness
02Machine/router/spindle type
03Cutter diameter and shank size
04Cut depth and pass depth
05Finish needed: top, bottom or both edges
06Current cutter spec if replacing

Still unsure?

Build a better cutter request.

Vague questions lead to vague answers. Use this builder to send the details that actually matter before choosing a cutter.
  • Tell us what material you are cutting
  • Add your machine, cutter size and finish goal
  • Explain the problem you are trying to solve

Useful things to include:

The more detail you include, the easier it is to narrow down a sensible cutter option.