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3/8″ Up-Cut Spiral Bit – 1/4″ Shank (AstraHP Coated)

3/8″ Spiral upcut router bit featuring 3 flutes and 1/4″ shank for faster cut speeds on a CNC. AstraHP Coated Solid Carbide 3 Flute Shank Diameter: 1/4″ Length of Cut: 1″ Tool Length: 2-1/2 inches Also available in Down-cut Made in USA #row-1701278917 > .col > .col-inner { padding: 20px 0px 20px 0px; } #section_785180701 { padding-top: 45px; padding-bottom: 45px; } @media (min-width:550px) { #section_785180701 { padding-top: 65px; padding-bottom: 65px; } } @media (min-width:850px) { #section_785180701 { padding-top: 2px; padding-bottom: 2px; } }

3/8″ Up-Cut Spiral Bit – 1/4″ Shank (AstraHP Coated) - Main image
$44.15 $68.99 In stock

Category: Up-Cut CNC Bits

This 3/8" up-cut spiral bit with a 1/4" shank is designed for CNC routing applications. The AstraHP coating is applied to enhance durability during use. As an up-cut bit, it is intended to evacuate chips upward, which can help in certain cutting operations.

  • Cutting diameter: 3/8"
  • Shank size: 1/4"
  • Up-cut spiral design for efficient chip removal
  • AstraHP coated for extended tool life
  • Suitable for CNC router use
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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)

Scarlett ★★★★★

Once I dialed in the feed rate, this bit left a noticeably cleaner edge than my old one, and that AstraHP coating seems to hold up better under heavy use. The up-cut action clears chips like a dream during deep passes.

Alexander ★★★★★

I was worried about bit deflection on my deeper passes, but the 1/4" shank runs true even at 2 inches deep. The coating still looks new after a dozen jobs poking through plywood.

Henry ★★★★★

Ran this bit through a dozen sheets of plywood and the up-cut spiral still flings chips out clean as day. The AstraHP coating is holding up way better than my old uncoated bits, which would’ve dulled by now. Shank fit my router collet perfectly, zero wobble at speed.