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1/8″ (.125″) Single Flute Engraving Cutter – 1/4″ Shank x 6-1/2″ w/ Knob

Ideal for engraving machines that require a top loading tool. Also available in 2 flute and 1/16″ Tip Diameter. Solid Carbide Single Flute Shank Diameter: 0.25″ (1/4″) Cutting Tip: 0.125″ (1/8″) Length of Cut: 0.375″ (3/8″) Includes brass cutter knob used to set the cutter depth. Made in USA ***Not designed for standard CNC machines. See our ‘O’ Flute bits for CNC machines.

1/8″ (.125″) Single Flute Engraving Cutter – 1/4″ Shank x 6-1/2″ w/ Knob - Main image
Engraving cutter spec, not for CNC machines.single flute 1/8" engraving cuttersingle flute 1/8" engraving cuttersingle flute 1/8" engraving cutter
$27.94 $42.99 In stock

Category: 1 4 x 6-1 23 Engraving Cutters

Excellent for Cutting:

  • Plastic/Acrylic
  • LED Back-lit and Side-lit displays and control panels
  • Sign Foam
  • Corian
  • Fiberglass
  • Corrugated Plastics such as Correx Boards and Polypropylene
  • Dibond
  • Plexiglas
  • Hard/Soft wood
  • Wood cabinetry and sign making

What is a O Flute bit? *Or sometimes this type of bit is called a Single Flute bit*

Our ‘O’ flute engraving cutters are manufactured from solid carbide tool material in straight and spiral configuration. The upcut, or right hand spiral is most readily utilized because of the need to evacuate chip in an upward direction in flat sheet or block applications. Upward movement of chips avoids welding, which is a common problem in the machining of plastic. With a high rake angle and relatively low helix, O-flute cutters manage to cut acrylic, polycarbonate, ABS, PVC at very high chip loads without raising a burr or fracturing the edges of the surface. All of this while leaving a really clean surface finish. “O” flutes also work incredibly well in wood and aluminum with effortless chip removal!

Made in the USA by Bits & Bits Company.
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Henry ★★★★★

The knob on the end makes plunging into 3/4" sign foam so much more controlled than my old cutter. I've been running it through Corian and Dibond scraps too and the single flute clears chips without any chatter. Six and a half inches of reach means I'm not fighting the collet on deeper cuts.

Abigail ★★★★★

I've been cutting 1/8" letters into acrylic for LED edge-lit signs with this bit and the edges come out clean enough that I barely have to sand. The 6-1/2" length gives me plenty of reach on thicker Corian pieces.

Emily ★★★★★

The knob on the end makes it way easier to control depth when I’m routing acrylic panels, and the 1/4-inch shank fits my router collet without any adapter hassle. Cut through some polypropylene sign board cleanly with zero melting or chipping, which is exactly what I needed.

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