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4 Piece 1/16″ Spiral Detail Kit – AstraHP Coated

Perfect for cutting intricate detail, this four piece kit of 1/16″ (.062″) up-cut and down-cut spiral inlay bits can take your work to a new level! AstraHP Coated Solid Carbide 1/4″ Shank 425-SRF062 – 1/16″ Up-Cut Spiral 425-SRF062LR – 1/16″ Long Reach Up-Cut spiral 425-DNC062 – 1/16″ Down-Cut Spiral 425-DNC062LR – 1/16″ Long Reach Down-Cut Spiral Made in USA See below for Speeds & Feeds info

4 Piece 1/16″ Spiral Detail Kit – AstraHP Coated - Main image
Bits&Bits AstraHP Coated 425-SRF062LR 1/16" Long Reach Up-cut CNC Router Bit*AstraHP Coated* Bits&Bits 425-SRF062 – 1/16″ Up-Cut Spiral Bit*AstraHP Coated* Bits&Bits 425-DNC062 – 1/16″ Down-Cut Spiral BitBits&Bits AstraHP Coated 425-DNC062LR 1/16" Long Reach Down-cut CNC Router Bit
$104.95 $163.99 In stock

Category: CNC Kits

This 4-piece spiral detail kit from BitsBits.com brings together four AstraHP-coated 1/16-inch CNC router bits, designed for fine detail work in a range of routing tasks. The kit includes both up-cut and down-cut spiral options, as well as long-reach versions of each, giving you flexibility for different material and depth requirements.

  • Includes four 1/16-inch spiral bits: up-cut, down-cut, long-reach up-cut, and long-reach down-cut.
  • AstraHP coating is applied to each bit for enhanced performance.
  • Recommended operating parameters: spindle speed 16,000 RPM, feed rate 40 IPM, plunge rate 20 IPM.
  • Recommended depth per pass: 1/16 inch (0.062 inch).
  • Suitable for CNC routing applications that require precise, small-diameter cutting.
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Customer Reviews (5.0 / 5 · 5 reviews)

Benjamin G. ★★★★★

The AstraHP coating held up beautifully through a full day of intricate engraving on hard maple—no burning or dulling, which surprised me. The up-cut spiral cleared chips effortlessly, and the 1/16″ size let me get into tight corners my other bits couldn't reach. This kit's become my go-to for fine

Andrew A. ★★★★★

The 1/16 inch diameter is perfect for the tiny lettering I rout into walnut signs, and the AstraHP coating has held up way better than the bare bits I used before. Four bits in one kit means I'm not stopping mid-project when one gets dull.

Hazel X. ★★★★★

Bought these for cutting small inlays in walnut and the 1/16 inch size gets into corners my bigger bits can't touch. The up-cut leaves a cleaner edge than I expected on the top face. Four bits for the price of what I used to pay for two is a nice bonus.

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