Premium CNC & Router Bits for Precision Cutting

3/8″ Compression Spiral Chip Breaker – 3/8″ Shank (AstraHP Coated)

Compression cut flutes minimize chipout and tearout on both edges of your workpiece. AstraHP Coated Solid Carbide 3/8″ cutting diameter 1-1/4″ length of cut. 3” overall length Compression Cut Spiral Change: .350″ Made in USA

3/8″ Compression Spiral Chip Breaker – 3/8″ Shank (AstraHP Coated) - Main image
$64.96 $88.99 In stock

Category: Compression CNC Router Bits

This 3/8-inch Compression Spiral Chip Breaker router bit from BitsBits.com features a 3/8-inch shank and an AstraHP coating. Designed for clean cuts on a variety of materials, the compression geometry helps reduce chipping on both top and bottom surfaces.

  • Compression spiral design for chip-breaking action and reduced tear-out.
  • AstraHP coating for enhanced durability and heat resistance.
  • 3/8-inch cutting diameter with a 3/8-inch shank for compatibility with standard routers.
  • Suitable for use in CNC routing applications.
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

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

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

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.6 / 5 · 5 reviews)

Ruby ★★★★★

I was worried about chip-out on double-sided melamine, but the AstraHP coating really helps keep the edge clean and the bit cool. It runs smoothly at high feed rates without leaving fuzzy edges.

Miles H. ★★★★★

The compression geometry on this bit gave me zero tearout on both faces of the veneered ply I was running, which is exactly what I bought it for. The AstraHP coating seems to be holding up well after a few sheets too, no sign of gumming yet.

Hannah ★★★★★

The AstraHP coating has held up through several sheets of plywood without any of the burning I used to get. Compression geometry on the top and bottom means I can flip a panel and both faces come out clean.