End Mill Upcut Spiral
Whiteside RU2100 1/4" Upcut Spiral
Whiteside
$31.95
Overview
The Whiteside RU2100 is the 1/4-inch upcut spiral that professional CNC woodworkers trust. The 2-flute design delivers a smoother finish than single-flute alternatives while still providing good chip evacuation. Made in the USA from premium micro-grain carbide, this bit is built to last through production runs.
Best for
Premium woodworking requiring smooth finishes and long tool life.
Specifications
Shank Diameter
1/4"
Cutting Diameter
1/4"
Flute Count
2
Material
Solid Carbide
Coating
Uncoated
Type
Upcut Spiral
Material Compatibility
Wood Plywood MDF Hardwood Softwood Acrylic
Not rated for aluminum. Use a ZrN or DLC coated single-flute end mill for aluminum cutting.
Pros
- Made in USA, exceptional quality control
- Smoother finish than single-flute bits
- Premium micro-grain carbide lasts 3-5x longer
- Excellent in hardwoods like maple and walnut
Cons
- Premium price at over $30
- 2-flute requires faster feed rates
- Not suitable for aluminum
- May be overkill for occasional hobbyists