SPECS - US4900C | 3/8" Cut Diameter | 1/2" Shank | 1-1/8" Cut Length | 3" Overall Length | Compression Up & Down Cut | 2 Flute | Solid Carbide | Spiral Router Bit | Short Up-Cut Flute | Made in USA
2-Flute Spiral Compression CNC Router Bit Short Up-Cut Size Chart
| Sku | Shank Size | Cut Diameter | Cut Length |
| US3100C | 3/8" | 3/8" | 1" |
| US3125C | 3/8" | 3/8" | 1-1/4" |
| US5125C | 1/2" | 1/2" | 1-1/4" |
| US5162C | 1/2" | 1/2" | 1-5/8" |
| US4900C | 1/2" | 3/8" | 1-1/8" |
Ultra-Shear 2 Flute Compression Short Up-Cut Router Bits
Achieve Perfect Edges with Ultra-Shear Compression Bits
Ultra-Shear 2 Flute Compression Short Up-Cut Router Bits combine up-cut and down-cut geometry to deliver incredibly clean edges on both the top and bottom of your material. The "merger zone" on the bits extends just over 1/8" from the end, providing true compression cuts on materials as thin as 1/4" (6mm).
Precision Cutting & Reduced Finishing Time
Made from solid carbide, each bit features up-cut and down-cut flutes, creating a compression cut that prevents fraying and splintering. This flute design reduces sanding time. The shorter up-cut flutes allow the down-shear cutting action to engage the top surface during shallow cuts, ensuring clean and precise results.
Options for Different Needs
- 3/8" SH | 3/8" CD
- 1/2" SH | 1/2" CD
- 1/2" SH | 3/8" CD
Using a 3/8" bit compared to a 1/2" bit is akin to switching to a thin kerf blade on your table saw, offering more yield and saving 1/8" of material on every edge. However, for certain materials and patterns, a 1/2" diameter bit is essential. Ultra-Shear provides both options in a variety of cut lengths to meet your needs.
Long-Lasting Industrial Quality
Industrial users who have switched to Ultra-Shear solid carbide bits report up to 15x service life compared to other brands. This means less downtime for bit replacement. In a home shop, these bits might last as long as your hobby. Engineered for sheet goods, the Short-Up-Cut Compression Bits also cut solid wood flawlessly in through-cuts, dadoes, grooves, and rabbets.
Proudly Made in the USA
All Ultra-Shear Solid Carbide CNC Router Bits are manufactured in Woodpeckers' Strongsville, Ohio facility. We take pride in our American-made products and are confident you won't find better quality for less.
Recommended RPM
16,000 - 18,000 (Max 24,000)