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Pattern router bit
3/8 pattern router bit
3/8 down cut pattern bit, AstraHP Coated 425-PB325
3/8 down cut pattern bit, AstraHP Coated 425-PB350
3/8 down cut pattern bit, AstraHP Coated 425-PB325
3/8 down cut pattern bit, AstraHP Coated 425-PB325
3/8 down cut pattern bit, AstraHP Coated 425-PB325
pattern router bit
Pattern router bit
3/8 pattern router bit
3/8 down cut pattern bit, AstraHP Coated 425-PB325
3/8 down cut pattern bit, AstraHP Coated 425-PB350
3/8 down cut pattern bit, AstraHP Coated 425-PB325
3/8 down cut pattern bit, AstraHP Coated 425-PB325
3/8 down cut pattern bit, AstraHP Coated 425-PB325
pattern router bit

3/8″ Down-Cut Pattern Router Bit – 1/4″ Shank

$48.99

Designed for trim routers, this 3/8″ triple flute down-cut pattern bit features a 1/4″ shank, double bearings, and our AstraHP Coating for extra-long life. Ideal for fine detail in plywood, laminates, and hardwood. Available in 1/4″ and 1/2″ cut lengths.

  • AstraHP Coated
  • Solid Carbide
  • 3 Flute
  • 1/4″ Shank
  • 3/8″ Cut Diameter
  • 1/4″ Cut Length
  • 1-3/4″ Overall length
  • Recommended RPM: 16,000
  • Made in USA
  • Standard Shipping starts at $6.75
  • FREE shipping on orders over $139
  • Eligible for return within 30 days.
    Exclusions apply. See our returns policy.
  • Secure checkout protected by SSL encryption.
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More Info

When your routing project calls for tighter turns and crisp edges, our new 3/8″ Down-Cut Pattern Router Bit delivers. Engineered specifically for trim routers and precision work, this bit features a compact 3/8″ diameter and triple-flute design for smooth, controlled cuts in hardwoods, plywood, and laminates.

With a solid 1/4″ shank, this bit is lightweight and easy to control—perfect for pattern routing, template work, or decorative edge shaping where fine detail matters. The down-cut geometry ensures splinter-free top surfaces, while the double bearing setup offers extra stability and support when following guides or jigs.

And of course, it’s coated with our exclusive AstraHP Coating, giving you up to 3X longer tool life and reliable performance, even in abrasive materials.

Available in both 1/4″ and 1/2″ cutting lengths, this compact bit gives you the precision you need without sacrificing cut quality. A great choice when a standard 1/2″ bit is just too big for the job.

  • 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

Replacement parts coming soon!