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o flute spiral bit
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
o flute spiral bit
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375
3/8 O flute spiral bit for plastics and aluminum. AstraHP Coated, Bits&Bits 330-UP375

3/8″ O-Flute Spiral Bit – 3/8″ Shank

$78.99

Grab 4, pay for 3. Same shank, no funny business. 😎

In stock

Engineered for precision and performance, our 3/8″ O Flute Spiral Bit delivers exceptionally clean cuts in plastics, acrylics, and non-ferrous materials. Crafted in the USA from premium carbide and finished with our exclusive AstraHP coating, this bit runs cooler, lasts longer, and resists edge buildup even under demanding production conditions.

  • AstraHP Coated
  • Solid Carbide
  • Single Flute Up-cut
  • Shank: 3/8″
  • Cut diameter: 3/8″
  • Length of cut: 5/8″
  • Recommended RPM for Acrylic – 12,000RPM
  • 3” overall length
  • Made in USA
CNC-HandRouter-RouterTable

In stock

  • Standard Shipping starts at $6.75
  • FREE shipping on orders over $139
  • Eligible for return within 30 days.
    Exclusions apply. See our returns policy.
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SKU: 330-UP375 Categories: ,
More Info

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 single flute (O Flute) bit? 

Our ‘O’ flute bits 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.

  • Same-Day Shipping: Orders placed by 2:00 PM PST, Monday–Friday, ship the same day.

  • Custom Engraving Tools: Made to order and typically ship within 1–2 business days.

  • Standard U.S. Shipping: Starts at $7 and delivers in 3–10 business days.

  • Express Shipping: $10.99 with 2–3 business day delivery.

  • Next Business Day Shipping: Starts at $35.

  • International Shipping: Available via FedEx only. Rates calculated at checkout.

New, unused in-stock tools may be returned within 30 days of delivery for a full refund.
Made-to-order tools—such as custom engraving cutters—may be returned but are subject to a 25% restocking fee.

Customers are responsible for return shipping costs unless the return is due to our error (such as receiving an incorrect or defective item). After 30 days, refunds or store credit may be offered at our discretion, except for warranty-related issues. Start your return here.

Unused items may also be exchanged for other tools; shipping charges apply unless the exchange is required due to our mistake.

If your order arrives damaged, please email info@bitsbits.com

Speeds & Feeds

This data serves as a general guidance only.
Soft/Hard Woods/ Plywood – (Spindle Speed- RPM: 18K ) – (Feed Rate – IPM : 200-230″) – (Ramp Down: 100-115″) – (Chip Load per Tooth: 0.0064″)
MDF / Laminate / Melamine – (Spindle Speed- RPM: 18K)  – (Feed Rate – IPM : 350-390″)  – (Ramp Down: 180-200″) – (Chip Load per Tooth: 0.0108″)