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Bosch 85906M 1/2-Inch Solid Carbide Downcut Spiral Router Bit1 / 3
Product guide

Bosch 85906M 1/2-Inch Solid Carbide Downcut Spiral Router Bit

Solid Carbide: The Bosch 85906M is a two-flute downcut spiral router bit with a 1/2-inch cutting diameter, described for through-cutting and work where downward pressure is useful. Its downcut geometry suits CNC or router-table setups when pushing material away from the router motor is desirable.

At a glance

  • Downcut spiral design is described for through-cutting where downward pressure and chip removal are desired.
  • Manufacturer recommends use with a CNC or router table.
  • Solid carbide construction is claimed for durability.
  • The listing describes balanced cutting with minimal vibration.
Price
$44.36Save 16%

Reference price: $52.96

Price checked: Nov 14, 2026

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Often bought together

Pros and cons

Pros

  • Downcut geometry is suited to jobs where holding material down is useful, including template cutting.
  • Two flutes and a 1/2-inch cutting diameter are clearly specified.
  • The manufacturer recommends the bit for CNC and router-table applications.

Technical specifications

6 specifications
Identity
BrandBosch
Model85906M
Cutting and material
Material listedBlend, Carbide
Cut typeSpiral
Cutting diameter0.5 inches
Number of flutes2

What to know before buying

  • The manufacturer describes the bit for through-cutting and downward pressure, but does not provide a shank diameter or cutting length in the supplied specifications. Confirm those dimensions and compatibility with your router or collet before purchase.

What’s in the box

Included
  • SC 1/2 X 1-1/4 DOWNSPIRAL 2F 1/2S

Who is it for?

A good fit for

  • CNC or router-table users seeking a downcut spiral bit for through-cutting or template work.
  • Woodworkers who want the cutting action to push material away from the router motor.

Less suited to

  • Buyers who need a confirmed shank size, cutting length, or detailed work-material compatibility before choosing a bit.
Bosch 85906M 1/2-Inch Solid Carbide Downcut Spiral Router Bit · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 5 ratings
  • 5 stars43%43%
  • 4 stars57%57%
  • 3 stars0%0%
  • 2 stars0%0%
  • 1 star0%0%

The supplied evidence contains aggregate ratings but no customer comments. The ratings are positive overall, though the sample is very small and does not establish particular strengths, concerns, or reasons for satisfaction. Use the bit's stated downcut design and specified diameter to assess fit for your work rather than treating the ratings as performance verification.

Frequently asked questions

What is the cutting diameter of the Bosch 85906M?

The listing gives a cutting diameter of 0.5 inches.

What does the downcut design suit?

The manufacturer describes it for through-cutting where downward pressure and chip removal are desired, and says it can be useful for template cutting.

Is this bit recommended for CNC use?

Yes. The manufacturer recommends it for CNC or router-table use. Check the bit dimensions against your machine and collet before buying.

Bosch 85906M 1/2-Inch Solid Carbide Downcut Spiral Router Bit · photo 3
Additional product photo 3

Alternative options

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