Vortex Tool Series 4100 Two-Flute High-Helix Foam Upcut Spiral Router Bit – 3/8 in Diameter x 1-1/2 in Cutting Length
Two-Flute High-Helix
Foam Upcut Bit
A Vortex Tool Series 4100 two-flute solid-carbide high-helix foam router bit with a 3/8-inch cutting diameter, 1-1/2-inch cutting-edge length, 3/8-inch shank, and 3-inch overall length. Its open-flute upcut geometry is designed to clear low-density closed-cell foam efficiently during high-feed CNC routing.
Main Product Description
The Vortex Tool 4140 is a Series 4100 solid-carbide high-helix foam bit developed for cutting low-density foam materials at high feed rates. Vortex recommends this tool family for closed-cell foam applications where rapid material removal and dependable evacuation are central to the routing process.
The Series 4100 design uses an open flute geometry and high helix angle to draw routed foam upward and away from the cutting zone. This upcut action helps prevent loose foam material from remaining packed around the cutting edges during compatible profiling, contouring, pocketing, and slotting operations.
The verified 4140 configuration uses a 3/8-inch cutting-edge diameter, 1-1/2-inch cutting-edge length, 3/8-inch shank, 3-inch overall length, two high-helix flutes, solid-carbide construction, upcut chip flow, and standard right-hand rotation. Correct collet condition, spindle runout, projection, feed, RPM, workholding, and extraction are essential to routing stability and tool life.
Best Fit Applications
Product Highlights
High-Helix Upcut Action
The steep spiral angle carries low-density foam material upward and away from the cutting zone during compatible routing operations.
Open-Flute Evacuation
The open flute form provides generous space for routed foam material to clear instead of remaining packed around the cutting edges.
High-Feed Foam Design
Series 4100 was developed specifically for low-density closed-cell foam cutting at elevated CNC feed rates.
Compatibility & Installation Notes
Confirm a clean, undamaged 3/8-inch collet or compatible holder, correct right-hand spindle rotation, adequate shank engagement, safe projection for the 3-inch overall length, machine RPM limits, feed rate, foam density, cut depth, workpiece support, extraction, and workholding before use. High-helix upcut geometry moves material toward the spindle and can apply lifting force, so lightweight foam parts must be securely restrained throughout the toolpath.
Efficient Closed-Cell Foam Routing
Vortex Tool 4140 combines Series 4100 two-flute high-helix upcut geometry with a verified 3/8-inch cutting diameter, 1-1/2-inch cutting length, 3/8-inch shank, and 3-inch overall length.
Its solid-carbide open-flute design is intended to evacuate low-density closed-cell foam efficiently during high-feed CNC profiling, contouring, pocketing, and slotting applications.