We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Onsrud

Onsrud 63-525 Solid Carbide Router Bit 1/4 in Upcut O-Flute

SKU CH-BZ0A-VFE9Z

One-flute upcut carbide router bit plunge-cuts acrylic with efficient chip evacuation

  • TypeMilling
  • Optimised chip removal with O-flute upcut spiral
  • Clean cuts in acrylic from single-flute design
  • Durable cutting edges using solid carbide construction
  • Precision plunge routing with pointed tip geometry
  • California Prop 65 chemical warning applies

Onsrud 63-525 Solid Carbide Router Bit

The Onsrud 63-525 is a solid carbide router bit with a 1/4 inch cutter diameter and O-flute upcut spiral. It is designed for milling acrylic and similar plastics, delivering a clean plunge cut and efficient chip evacuation for CNC operators and fabricators.

Check collet size and material compatibility

Verify that your router or CNC spindle accepts a 1/4 inch shank before ordering. The bit is specified for acrylic applications; confirm that your workpiece material matches this primary use to avoid premature wear or poor cut quality.

California Proposition 65 notice included

The product carries a California Proposition 65 warning for chemicals known to cause reproductive harm. No additional accessories, coatings or software are bundled with the bit itself.

Highlights

  • Optimised chip removal with O-flute upcut spiral
  • Clean cuts in acrylic from single-flute design
  • Durable cutting edges using solid carbide construction
  • Precision plunge routing with pointed tip geometry
  • California Prop 65 chemical warning applies

Specifications

BrandONSRUD
TypeMilling

Questions about this item

What comes with the Onsrud 63-525 bit and what must I buy separately?

The box contains the solid carbide router bit itself; you must supply a compatible 1/4 in collet or chuck and a router or CNC spindle to drive it.

How do I choose between the available versions of the 63-525?

Only the 63-525 model is listed, so there are no alternate versions or capacities to select from.

What does the upcut O-flute geometry mean when the bit is cutting acrylic?

The upcut spiral pulls chips upward and out of the cut, reducing heat buildup and leaving a cleaner edge in acrylic sheet.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.