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Uncoated carbide router bit with downcut O-flute spiral design

Onsrud

Onsrud 62-726 Router Bit Down O-Flute 1/4

SKU CH-H4EB-HY8B4 MPN 62-726

Carbide router bit with down-cut O-flute geometry for clean cuts in hard plastics

  • Product typeRouters
  • Main materialCarbide
  • Color and finishUncoated
  • Carbide construction resists wear for longer tool life
  • Downcut spiral clears chips downward for cleaner top surfaces
  • O-flute geometry reduces heat buildup in hard plastics
  • 1/4 inch cutter diameter suits precise routing tasks
  • Uncoated carbide maintains sharp edges in abrasive materials

Material and flute design

The Onsrud 62-726 is a solid carbide router bit with a down-cut O-flute spiral. It is engineered for machining hard plastic materials where chip evacuation and edge finish are critical. The uncoated carbide substrate provides sharpness and wear resistance for abrasive plastics. This tool is intended for CNC routing operations requiring a clean top surface.

Suitability for plastic routing

This bit suits shops and fabricators cutting solid plastic sheet or block on CNC routers. The down-cut geometry pushes chips downward, which helps hold thin workpieces flat and prevents lifting. Buyers who need an up-cut spiral for deeper chip removal in wood or aluminium should look at a different flute style. It is not intended for metal cutting or high-heat applications.

Cutter diameter

The cutting diameter is 1/4 inch, which determines the minimum inside radius and the feed-rate window for a given spindle speed. Selecting this diameter also defines the collet or tool-holder size required on the machine. Verify that your router or spindle accepts 1/4 inch shanks before ordering.

How it compares

Measured against everything we stock in Sanders, Rotary & Demolition Tools, at today’s prices. Recalculated every night.

Price $46.99
Pricier than about 68% of the 477 comparable items (median $21.99).

Specifications

Product
Brand nameOnsrud
Model name62-726
Product typeRouters
Color and finishUncoated
Size & build
Main materialCarbide

Questions about this item

What shank diameter does the Onsrud 62-726 router bit need to fit my collet?

The Onsrud 62-726 has a 1/4 inch shank, so it fits a standard 1/4 inch collet or chuck on your router.

How do I install the Onsrud 62-726 bit and what step is often missed?

Insert the 1/4 inch shank fully into the collet, then tighten the collet nut securely; the step often missed is verifying the bit is seated completely before tightening.

When will the Onsrud 62-726 carbide bit need replacement?

Replace the carbide bit when the downcut O-flute edges dull, which shows as increased tear-out on hard plastic or excessive heat during routing.

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