Wood Router Bits

Whiteside · Spiral bits

Whiteside UD1602 1/8-inch compression spiral

1/4 in

A fine spiral cutter extends from a wider quarter-inch shank.
A fine spiral cutter extends from a wider quarter-inch shank.

When to choose it

The UD1602 offers a fine 1/8-inch cut with both upcut and downcut flute sections. It is an option when you are comparing edge quality on both faces of plywood and want a narrower groove than a quarter-inch cutter makes.

Check how the two flute sections contact the actual stock. This model’s half-inch cutting length is useful for comparison, while the permitted pass and machine setup come from the manufacturer’s instructions.

Specifications

Brand
Whiteside
Cutting profile
Compression
Model
UD1602
Shank
1/4 in
Cut diameter
1/8 in
Cut length
1/2 in
Overall length
2-1/2 in
Material
Solid carbide
Amazon.com reference
B07KQJ2HPJ

Care and other choices

Review the cutter dimensions and collet fit ↑

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Documentation

Questions about this product

Does it have the same flute direction as RU1600?

The RU1600 is upcut. The UD1602 uses opposing flute sections for a compression cut.

What size is the collet?

The shank is quarter inch.

Does it include a template bearing?

This spiral is listed and pictured without a pilot bearing.

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