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3/8″ Down-Cut Spiral Bit – 1/2″ Shank (AstraHP Coated)

Down-cut bits are perfect for shallow cuts leaving a crisp edge. Can also be used to keep material from lifting during the cut. AstraHP Coated Solid Carbide 1/2″ Shank 3/8″ Tip diameter 1-1/4″ Length of cut 3-1/2″ Overall Length Made In USA #row-1542006538 > .col > .col-inner { padding: 20px 0px 20px 0px; } #section_759592609 { padding-top: 45px; padding-bottom: 45px; } @media (min-width:550px) { #section_759592609 { padding-top: 65px; padding-bottom: 65px; } } @media (min-width:850px) { #section_759592609 { padding-top: 2px; padding-bottom: 2px; } }

3/8″ Down-Cut Spiral Bit – 1/2″ Shank (AstraHP Coated) - Main image
AstraHP Coated Bits&Bits 535-DNC375 3/8" down-cut CNC router bitAstraHP Coated Bits&Bits 535-DNC375 3/8" down-cut CNC router bit
$66.99 $99.99 In stock

Category: Down-Cut CNC Bits

This 3/8" Down-Cut Spiral Bit with a 1/2" shank is designed for clean, chip-free cuts on CNC routers. The down-cut geometry helps keep the top surface of your material smooth by pressing fibers downward, making it a reliable choice for finishing passes. The AstraHP coating enhances durability and helps reduce heat buildup during use.

  • 3/8" cutting diameter with a 1/2" shank for secure toolholding
  • Down-cut spiral design minimizes tear-out on the top edge
  • AstraHP coated for improved wear resistance and longer tool life
  • Compatible with CNC routers for precision routing tasks
  • SKU: 535-DNC375
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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)

Andrew V. ★★★★★

Running this bit for the first time on a cabinet door, the AstraHP coating seemed to help it glide through plywood without any burning. The 1/2″ shank gave zero vibration in the collet, which made for a truly clean edge on the top surface.

Hannah ★★★★★

The down-cut geometry really does its job—my oak edges came out clean with zero fuzz on the top surface, and the 1/2" shank felt rock-solid in the router. Coating held up through a full sheet of plywood without any gumming.

Richard ★★★★★

I was worried about tear-out on my plywood, but the AstraHP coating on this bit is slick and the down-cut design left the top surface absolutely flawless.

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