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Onsrud 63-713 carbide routing end mill hand tool

Onsrud

Onsrud 63-713 carbide routing end mill hand tool

SKU CH-A3ZY-HAR0D MPN 63-713

Carbide O-flute upcut router bit for hard plastic, 1/8 inch cutter diameter

  • TypeAngle, Pitch & Slope Locators
  • MaterialCarbide
  • Carbide construction resists wear during extended routing tasks
  • Upcut spiral clears chips efficiently from hard plastics
  • 1/8 inch cutter diameter suits fine detail work
  • Solid router bit design handles primary material applications
  • O-flute geometry reduces heat buildup in plastic cutting

What This Tool Does

The Onsrud 63-713 is a solid carbide routing end mill designed for hand-tool operation on hard plastics. Its O-flute upcut spiral geometry clears chips efficiently while producing a clean edge in materials such as acrylic, polycarbonate and similar rigid plastics. The cutter diameter is 1/8 inch and the tool carries the Onsrud brand reputation for precision grinding.

When To Choose This Bit

Select this end mill when a straight-flute or downcut bit leaves melted edges or poor chip evacuation in hard plastic sheets. The upcut action pulls swarf upward, reducing heat buildup and the risk of re-welding chips to the workpiece. It replaces general-purpose bits that are not optimised for the specific shear angle and polished flute finish required by abrasive or heat-sensitive plastics.

Check Your Setup First

Verify that your router or spindle accepts a 1/8-inch shank and can run at the speeds recommended for small-diameter carbide tooling in plastic. Confirm the collet or chuck provides full clamping length without runout. Ensure the workholding is rigid enough to prevent vibration, as carbide is brittle and will fracture under excessive side load or chatter.

Highlights

  • Carbide construction resists wear during extended routing tasks
  • Upcut spiral clears chips efficiently from hard plastics
  • 1/8 inch cutter diameter suits fine detail work
  • Solid router bit design handles primary material applications
  • O-flute geometry reduces heat buildup in plastic cutting

Specifications

BrandOnsrud
Model63-713
TypeAngle, Pitch & Slope Locators
MaterialCarbide

Questions about this item

What router collet size does the 1/8 in cutter diameter require?

Use a collet or chuck that accepts a 1/8 in shank; the solid carbide bit has no separate shank dimension listed.

How do you secure the upcut O-flute bit in a CNC router without it pulling loose?

Tighten the collet to the manufacturer's torque spec and verify the bit is seated fully; the upcut spiral can lift the workpiece if the hold-down is insufficient.

When should the carbide router bit be replaced during hard-plastic routing?

Replace it when the cutting edges show visible wear, chipping, or when cut quality degrades and feed rates must be reduced.

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