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Recommended Router bits for CNC

Selecting router bits for your CNC can be confusing since many brands, types, and sizes are available. 

When I buy a bit, I look for three things:

1. Profile accuracy

     - Does the v-bit have a nice, pointed tip for details?

     - Does the ball nose, core box, or round nose bit cut a nice smooth semi-circular groove?

     - Is the v-bit angle accurate?

     - Is the cutting diameter accurate?

2. Performance

     - Does it produce a nice clean, crisp cut?        

        (Some types of wood are hard to route cleanly, so it's not always the bit.)

     - How long does the edge last?                             

        (It's essential to use appropriate feed and speed rates since the wrong settings can dull a bit quickly.)

3. Price

              - The cost of bits adds up, so saving a few bucks is nice.

 

The bits below are some of the ones I frequently use in my shop and classes. They have performed well in both situations - especially when working on a small format (bench top) CNC machine.

I've also found much truth in the saying: "you get what you pay for."

With that said, some brands are priced very competitively and still perform well. I've started using some of them regularly and have included a couple of them in the list below. ​

Some of the bits types below are very common and are carried by almost all the brands, and you may find other brands with similar quality and prices as those listed below - so it may be worth shopping around.

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– Randy Johnson –

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Affiliate Disclosure: As an Amazon Associate, I may earn commissions from qualifying purchases from Amazon.com.

V-bit - 90-deg.

Amana RC-45711

Single flute

Carbide insert

11/16 in. dia.

​​1/4-Inch shank

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- Excellent performance and economy.

- Four cutting edges - inexpensive replacement inserts

- Changing the insert is a little tricky.

(V-bit) Engraving - 60-deg.

LMT Onsrud 37-01

Single flute

Solid Carbide

Tip - .005" 

Shank - 1/4" dia.

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​​- Excellent choice for fine v-carving details.

End Mill - 1/8 dia.

Amana 46341

Two flutes - solid carbide

Spiral Down cut

Cutting Height - 1/2"

Shank - 1/4" dia.

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Great choice for cutting thin plywood and veneers. The "spiral down-cut" pushes down on material to keep it from lifting.

Bit Amana DC 46341_edited.png
End Mill - 1/4 dia.

Whiteside-RU2100

Two flutes - solid carbide

Spiral Up Cut

Cutting Height- 1"

Shank - 1/4" dia.

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- My go-to for most profile cuts and small pockets

Ball Nose 1/8" dia.

  Yonico 34210-SC

Two flutes

Solid Carbide

Spiral Up Cut

Cutting Height - 1/2"

Shank - 1/4" dia.

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- Good choice for low relief 3D carvings

- Very competitive price

Ball Nose 1/4" dia.

  Yonico 34221-SC

Two flutes

Solid Carbide

Spiral Up Cut

Cutting Height - 3/4"

Shank - 1/4" dia.

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- Good choice for low relief 3D carvings

- Very competitive price

Bit Yonica .25 Ballnose 34221-SC.jpg

Tapered Ball Nose 1/8" dia.

 Amana 46286-k

Two flutes

Solid Carbide

nACo coating

Cutting Height - 1"

Shank - 1/4" dia.

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- Great choice for deep relief 3D carvings

Tapered Ball Nose 1/16" dia.

 Amana 46282-K

Two flutes

Solid Carbide

nACo coating

Cutting Height- 1"

Shank - 1/4" dia.

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- Great choice when you want extra fine details in your 3D carvings.

Spoil Board bit  1-1/4" dia.

  

Freud 16-106 

Two flutes

Carbide tipped

Shank - 1/4" dia.

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- Great value and performance when you need a spoil board bit with a 1/4" shank.

Freud morting bit 16-108.jpg

Spoil Board bit  1-1/4" dia.

 

Freud 16-108

Two flutes

Carbide tipped

Shank - 1/2" dia.

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- Great value and performance when you need a spoil board bit with a 1/2" shank.

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