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Wondering why the 3/16″ down cutting endmill is such a big deal with CNC router owners? There’s one huge reason…

The 3/16″ bit is often called The Silver Bullet of CNC router bits. That’s because it’s used to do both 1/8″ and 1/4″ work, saving the need for 2 different size bits. It eliminates irritating bit changes for many CNC router projects that would normally use both.

However, this bit IS the silver bullet of 3/16″ CNC router bits. You see, it has 3 distinct modifications that give it an advantage in your woodworking over the standard 3/16″ router bits.

→ The increased spiral turn reduces shear forces at any given point on the cutting edges. That increases the bit life dramatically.

→ the ‘knife’ edge is has a sharper angle that allows it to shear material away like a super-sharp knife through a sirloin steak (think about what 5-star chefs use).

→ The 1-inch flute length (25mm) gets you deep into your project, just as you would with a 1/4″ bit.

Cleaner cuts, longer bit life, deeper cut ability, and fewer bit change-outs! With these benefits, you’ll end up using this bit for most of your projects.

You’ll make this your main workhorse bit in no time.

As usual with IDC bits, it is made of 100% tungsten carbide. Carbide is what professional metal machinists use to make complex items like car engines. It stays sharp 50x longer than conventional CNC router bits.

Order your new workhorse 3/16″ down-cut bits today.

Download this FREE Feeds and Speeds table


  • Cut Diameter: 3/16″ (4.762mm)
  • Shank: 1/4″ (6.35mm)
  • Length: 2.0″ (50mm)
  • Flutes: 2
  • Flute length: 1″ (25mm)
  • Material: 100% carbide


  • Feed: 70-80 ipm (30-34mm/sec)
  • Plunge rate: 25 ipm (30mm/sec)
  • Max. Depth of cut: 0.1875 (4.7mm)
  • Fepth per pass: 0.187
  • Speed (rpm): 19000 (Makita router set to 3)
  • Stepover: 40%

For Vectric users, get the latest CNC router bit tool database by clicking here

For CNC’s with routers, refer to this PDF download feeds & speeds table


Weight 1.3 oz
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