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3/4″ Compression Spiral Flush Trim Router Bit – 1/2″ Shank (AstraHP Coated)

Our newest addition to our spiral flush trim router bits, the 3/4″ compression flush trim router bit will be your go-to for all your flush trim needs! AstraHP Coated Solid Carbide 3/4″ Cutting Diameter 1-3/8″ Length of Cut 1/2″ Shank Spiral Change: 0.375″ 4″ Overall Length Made in USA Recommended RPM 16,000

3/4″ Compression Spiral Flush Trim Router Bit – 1/2″ Shank (AstraHP Coated) - Main image
$165.59 $229.99 In stock

Category: Flush Trim Router Bits

Overview

The 3/4″ compression flush trim bit is built for heavy material and demanding flush trim work. The compression geometry (up-cut flutes below, down-cut flutes above) produces clean edges on both faces of your material simultaneously, eliminating tearout on veneered panels, laminates, and hardwood plywood.

What sets this bit apart is the top and bottom bearing design. Use it as a standard flush trim bit with your template below the workpiece, or flip your setup and run it as a pattern bit with the template above. One bit handles both configurations — no bit change needed when you switch setups on the router table.

For thicker material that exceeds the 1-3/8″ cut length, both bearings are removable. With the bearing removed, the full cutter height is exposed; rough cut your workpiece to within 1/8″ of the cut line before removing the bearing and making your final flush pass. Skipping the rough cut risks overloading the bit and leaving a poor edge.

The 1/2″ shank requires a full-size router or router table.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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 (4.8 / 5 · 5 reviews)

Charlotte P. ★★★★★

The down-cut flutes on top really saved me from tear-out on some tricky veneered plywood edges. Bit ran smooth and cool through a full day of cabinet work.

Sophia ★★★★★

Cut through a stack of 3/4-inch plywood without any tear-out—the compression spiral design left both sides perfectly smooth. Fit my router’s half-inch collet snugly, no wobble.

Hazel L. ★★★★★

The down-cut flutes on top kept the melamine surface from chipping, and the up-cut section cleared the waste fast. Made a perfect flush trim on some dense baltic birch.