Premium CNC & Router Bits for Precision Cutting

5/16″ Up-Cut Spiral Bit – 1/2″ Shank – Whiteside RU4850 (AstraHP Coated)

AstraHP Coated Solid Carbide 5/16″ cutting diameter 1/2″ shank 1″ length of cut Up-Cut 3” overall length Made In USA #row-91259648 > .col > .col-inner { padding: 20px 0px 20px 0px; } #section_436002850 { padding-top: 45px; padding-bottom: 45px; } @media (min-width:550px) { #section_436002850 { padding-top: 65px; padding-bottom: 65px; } } @media (min-width:850px) { #section_436002850 { padding-top: 2px; padding-bottom: 2px; } }

5/16″ Up-Cut Spiral Bit – 1/2″ Shank – Whiteside RU4850 (AstraHP Coated) - Main image
$50.99 $84.99 In stock

Category: Up-Cut CNC Bits

Solid carbide up-cut 2 flute router bit with 1″ LOC. This tool work really well for wood and even on plastics and aluminum. The cutting tip diameter is 5/16″ and the length of cut is 1″.

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 (4.4 / 5 · 5 reviews)

Leo ★★★★★

The AstraHP coating is a real bonus—it has yet to show any gumming after cutting through some tough hardwood ply and a few plastic sheets. It’s handled the 1″ depth of cut without any chatter, which is exactly what I needed for my CNC setup.

Joshua ★★★★★

Picked this up for aluminum prototyping and the AstraHP coating really does help prevent chip welding. Cuts through 6061 cleanly without the usual gumming, and the solid carbide holds an edge noticeably longer than my HSS bits.

Thomas A. ★★★★★

Switched from a cheaper bit to this one for cutting aluminum and the difference is night and day—the AstraHP coating really does help with chip evacuation. Cuts clean through 1/2" plywood like butter, and the 1" length of cut is perfect for my inlay work.