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AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2" triple flute up-cut chipbreaker bit
AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2" triple flute up-cut chipbreaker bit
AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2" triple flute up-cut chipbreaker bit
AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2" triple flute up-cut chipbreaker bit
AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2
AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2
AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2
AstraHP Coated Bits&Bits 540-SRF500CB-3FL 1/2

1/2″ Up-Cut Spiral Chipbreaker

$99.99

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

Out of stock

1/2″ spiral up cut chip breaker CNC bit is ideal for deep mortises and fast pocket cuts. 

  • AstraHP Coated
  • Solid Carbide
  • 1/2″ Cutting Diameter
  • 2″ Length of Cut
  • 1/2″ Shank
  • 4″ Overall Tool Length
  • Made in USA
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  • Eligible for return within 30 days.
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SKU: 540-SRF500CB Categories: , , , Brand:
More Info

What is a Chipbreaker?

Chipbreaker bits have unique notch profiles in the flute, creating a serrated cutting edge that breaks down chips into small, manageable pieces during machining. This feature improves bit life by making shorter chips which allows for quicker chip evacuation, reducing cutting force and allows for more accelerated speeds and feeds. The offset flute-to-flute arrangement of chipbreaker notches ensures a proper, flat surface finish as each flute cleans up excess material left behind by previously passed flutes.

What is an UpCut bit?

UpCut bits allow for rapid cuts since the tool clears the chips away from the material.  While Ideal for cutting thicker materials, this type of tool is not recommended for thinner or softer materials. They are more likely to tear the top surface with the cutting edges because they’re pulling the wood fibers up while cutting. When cutting laminated materials, such as plywood with a thin top veneer, that can matter a lot. This type of bit is used whenever the best finish is needed on the bottom side of a part.

  • 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 : 150-200″) – (Ramp Down: 75-125″) – (Chip Load per tooth – .0057″)
MDF / Laminate / Melamine – (Spindle Speed- RPM: 18K)  – (Feed Rate – IPM : 250-300″)  – (Ramp Down: 150-175″) – (Chip Load per tooth – .0096″)