Premium CNC & Router Bits for Precision Cutting

1/4″ Short-Flute Spiral Compression Bit (AstraHP Coated)

Also called a Mortise Style compression bit, this bit has a short up cut flute. This allows for shallower cuts while taking advantage of the compression cut. AstraHP Coated Solid Carbide Tip diameter: 1/4″ Shank Diameter: 1/4″ Length of cut: 1″ Spiral Change: 0.12″ Made in the USA #row-632451436 > .col > .col-inner { padding: 20px 0px 20px 0px; } #section_1921173293 { padding-top: 45px; padding-bottom: 45px; } @media (min-width:550px) { #section_1921173293 { padding-top: 65px; padding-bottom: 65px; } } @media (min-width:850px) { #section_1921173293 { padding-top: 2px; padding-bottom: 2px; } }

1/4″ Short-Flute Spiral Compression Bit (AstraHP Coated) - Main image
$37.39 $54.99 In stock

Category: Compression CNC Router Bits

Check our 1/4in Short-Flute Spiral Compression Bit with a cutting tip diameter of 1/4 and a 1 inch length of cut. Spiral change at 0.12″ allows for shallower cuts while taking advantage of the compression feature of the bit. Perfect for smaller CNC routers!

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 (4.8 / 5 · 5 reviews)

Olivia ★★★★★

After fighting with my old upcut bit leaving chipout on plywood, this short-flute compression bit gave me a perfectly clean top and bottom edge in one pass. The 0.12 inch spiral change lets me cut shallow dados without any tearout. A solid upgrade for my CNC.

Ava N. ★★★★★

Swapped my down-cut for this on some cherry drawer fronts and the top and bottom edges came out clean with zero tearout. The 1 inch cut length and short flute mean it clears chips fast on shallow passes, which is exactly what I needed on a small router.

Benjamin Q. ★★★★★

Cutting 3/4" plywood cabinet sides with this bit, and both faces come out splinter-free without any tape tricks. The AstraHP coating still looks new after a few sheets, no burn marks even on the slower feed passes.