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Onsrud 52-638 carbide routing end mill, 3/8 inch upcut O-flute

Onsrud

Onsrud 52-638 Routing End Mill hand tool

SKU CH-5PJD-6NHQ7 MPN 52-638

Solid carbide router bit with O-flute upcut spiral for hard and soft plastics

  • Product typeHole, Drill, Bore & Wire Gauges
  • Main materialCarbide
  • Solid carbide construction resists wear on hard plastics
  • Upcut spiral clears chips efficiently from deep cuts
  • 3/8 inch cutter diameter suits standard routing tasks
  • Designed for both hard and soft plastic materials
  • California Proposition 65 warning applies to this product

Hard-plastic routing cutter

The Onsrud 52-638 is a solid carbide router bit with an O-flute upcut spiral. It is designed for clean chip evacuation in hard and soft plastics. The cutter diameter is 3/8 in. The tool is supplied new.

Buyers machining plastic sheets

This bit suits CNC operators and fabricators who need upward chip removal when cutting acrylic, polycarbonate or similar plastics. It is not intended for metal, wood or composite panels. Users requiring downcut geometry or compression spirals should select a different tool.

3/8 in cutter diameter

The 3/8 in cutting diameter determines the minimum internal radius and the material removal rate. Verify that your collet and machine spindle accept this shank size before ordering.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $58.99
Pricier than about 76% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameOnsrud
Model name52-638
Product typeHole, Drill, Bore & Wire Gauges
Size & build
Main materialCarbide

Questions about this item

What is the cutter diameter of the 52-638 routing end mill?

The 52-638 routing end mill has a 3/8 inch cutter diameter designed for hard and soft plastic applications.

Does the carbide end mill generate significant heat during extended routing sessions?

The solid carbide construction and O-flute upcut geometry are designed to evacuate chips efficiently, which helps manage heat buildup during prolonged use.

What type of router collet or chuck is required to hold the 3/8 inch shank?

A router with a 3/8 inch collet or an adjustable chuck that accepts a 3/8 inch shank is needed to secure this end mill.

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