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AstraHP Coated 440-SRF250 1/4" Extra Long Up-cut Spiral CNC Router Bits
AstraHP Coated 440-SRF250 1/4" Extra Long Up-cut Spiral CNC Router Bits
AstraHP Coated 440-SRF250 1/4" Extra Long Up-cut Spiral CNC Router Bits
AstraHP Coated 440-SRF250 1/4
AstraHP Coated 440-SRF250 1/4
AstraHP Coated 440-SRF250 1/4

1/4″ Extra-Long CNC Bit – 2″ Cut

$66.99

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

In stock

Crafted for precision and performance on CNC machines. With an impressive 2″ cut length and solid carbide construction, this bit delivers exceptional durability and clean, chip-free cuts in deep routing applications. The up-cut flutes ensure efficient chip removal and smooth finishes, making it the ideal choice for cutting where precision matters. Built exclusively for CNC use, this end mill combines strength and reliability to tackle even the most demanding projects with ease.

  • AstraHP Coated
  • Solid Carbide
  • Tip Diameter: 1/4″
  • Up-Cut
  • Shank: 1/4″
  • Cut Length: 2″ (flute length)
  • Overall Length: 4″
  • Recommended RPM: 16,000
  • For CNC use only, not for hand routers.
  • 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: 440-SRF250 Categories: , Brand:
More Info

When using the Extra Long 1/4″ Up-Cut End Mill, proper speeds, feeds, and cut depths are critical to achieving optimal performance and preventing breakage. Due to its 4″ overall length and the naturally brittle nature of solid carbide, this bit requires careful handling to avoid undue stress. Exceeding recommended parameters or pushing the bit too hard can lead to snapping, especially in demanding applications. Always consult your CNC’s guidelines and adjust for material type to ensure smooth, precise cuts and extend the life of your bit. Patience and precision are key to maximizing both performance and durability.

This data serves as a general guidance only and do not warrant against bit breakage. These are conservative speeds and feeds due to the cut length on these tools
Soft Woods/ Hard Woods
RPM: 16,000RPM
IPM : 40-55″
Max Cut depth per pass: 3/16″

  • 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