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1/4" Single "O" Flute
CNCBits

1/4" Single "O" Flute

In stock
$40.50
$40.50
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shank

1/4"

Cut Length

7/8"

Diameter

1/4"

Material

Solid Carbide

flutes

1

coating

None

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1/4" O-Flute Upcut Bit — The Bit That Won't Melt Your Plastic

Cutting plastics with the wrong bit means melted edges, gummed-up flutes, and a ruined part. The 1/4" O-Flute Upcut Bit's single-flute geometry clears chips fast and cuts clean through plastics, soft metals, and composites — no melting, no clogging.

Solid carbide construction stays rigid on deep cuts while remaining precise enough for delicate, detailed work, so you get stable, repeatable results on complex parts.

Specs
  • Cut diameter: 1/4″
  • Shank: 1/4″
  • Cut length: 7/8″
  • Material: 100% carbide
Settings
  • Speed (rpm): 18,000
  • Feed: 90 ipm
  • Plunge: 40 ipm

Results vary by material and machine rigidity — treat these as your starting point.

What is an O-flute bit used for?

Cutting plastics, soft metals and composites without melting or clogging. The single-flute shape clears chips fast.

What speeds and feeds should I use?

Start at 18,000 rpm, 90 ipm feed and 40 ipm plunge.

Why use a single flute on plastic?

Too many flutes make too much friction, and plastic melts. A single O-flute clears chips quickly and keeps the cut cool and clean.

What are its dimensions?

1/4″ cutting diameter, 1/4″ shank and a 7/8″ cut length, in 100% carbide. It's a good fit for 1/4″ collets.

Is it good for deep cuts?

It stays rigid on deep cuts while remaining precise for detail work. For extra reach, see the 1/4″ Long Cut Single O-Flute with a 1.25″ cut length.

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