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1/16″ Down-Cut Spiral Bit (AstraHP Coated)

AstraHP Coated Solid Carbide Tip diameter: 1/16″ Shank Diameter: 1/4″ Length of cut: 3/16″ Tool Size: 1/4″ x 2-1/2″ Made In USA Also available in Long Reach See description below for Speed and Feed rates. #row-2109220461 > .col > .col-inner { padding: 20px 0px 20px 0px; } #section_1643856404 { padding-top: 45px; padding-bottom: 45px; } @media (min-width:550px) { #section_1643856404 { padding-top: 65px; padding-bottom: 65px; } } @media (min-width:850px) { #section_1643856404 { padding-top: 2px; padding-bottom: 2px; } }

1/16″ Down-Cut Spiral Bit (AstraHP Coated) - Main image
$30.14 $44.99 In stock

Category: Down-Cut CNC Bits

2 flute 1/16in Down-Cut Spiral Bit. The flutes are designed to push the chips downward and they also help with fraying and chipping on your workpiece. This tool work really well for wood and even on plastics and aluminum. The cutting tip diameter is 1/16″ and the length of cut is 3/16″. Formerly known as 420-DNC062.

Looking for something bigger?
Check our 1/8″ Down-Cut Spiral Bit.

Speeds and Feeds

  • Spindle Speed: 16,000RPM
  • Feed rate: 40IPM
  • Plunge rate: 20IPM
  • Depth per pass: 1/16″ (0.062)

Recommended starting points only, does not warranty against tool breakage. Speeds and feeds ma vary depending on material type and thickness, always make test cuts with shallow passes in scrap material to verify speeds and feeds work for your machine and setup.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (5.0 / 5 · 5 reviews)

Ellie W. ★★★★★

The chip evacuation is genuinely impressive—those down-cut flutes push everything below the surface, so my workpieces come out with zero fuzzy edges. Even on softer pine, the cut stays crisp and clean.

Michael ★★★★★

I was getting terrible tear-out on thin plywood until I tried this bit — the down-cut flutes keep the top surface perfectly clean. It’s also held up well through several projects without any dulling.

Michael I. ★★★★★

The down-cut spiral really keeps the top surface clean on my walnut inlays—no more sanding out fuzzy edges afterward. Cuts smoothly at reasonable feed rates, and the thin 1/16″ diameter gives me the detail I need for small lettering.