Premium CNC & Router Bits for Precision Cutting

1/4″ Down-Cut Spiral Flush Trim Router Bit (AstraHP Coated)

Ideal for flush trimming laminates, veneers and shelf edging, the down-cut flush trim bit shears down and away from the router leaving a crisp, sharp top edge on the workpiece. The down cut bit works best in a handheld router, router table use is possible but not recommended. AstraHP Coated Solid Carbide Down-Cut Shank: 1/4″ Cut Length: 1″ Overall Length: 3″ Double Bearings Made In USA Max RPM – 18,000

1/4″ Down-Cut Spiral Flush Trim Router Bit (AstraHP Coated) - Main image
$38.34 $58.99 In stock

Category: Flush Trim Router Bits

This 1/4-inch down-cut spiral flush trim router bit is designed for clean, precise trimming along edges. Its down-cut geometry helps reduce tear-out and delivers a smoother finish on the top surface of your workpiece.

  • Down-cut spiral design for efficient chip evacuation and reduced heat buildup.
  • Flush trim configuration is ideal for trimming laminate, veneer, or solid wood flush with a template or bearing surface.
  • Coated with AstraHP for enhanced durability and longer life between sharpenings.
  • Shown in use on a router table for edge-trimming applications, including shelf edges.
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)

Alexander ★★★★★

Using this on some tricky cherry edge-banding last night and the AstraHP coating really helped it glide through without gumming up. The finish was so smooth I barely needed any sanding before applying the next piece.

Claire ★★★★★

The AstraHP coating on this bit held up through a whole afternoon of trimming oak without any burn marks, and the down-cut spiral left a surface so clean I didn't need to sand before finishing. I've used cheaper bits that chattered on end grain, but this one stayed true the entire cut.

Hazel Z. ★★★★★

The down-cut spiral really does keep the top edge tear-out free—I ran it along some plywood and the finish came out buttery smooth without any chipping. It’s a great flush trim bit for the price, and the coating seems to hold up well after several passes.