Double-Edge O-Flute Geometry
Two cutting edges reduce chip load per edge and create a stronger cross section than a comparable single-edge configuration.


A Vortex Tool Series 5500 solid-carbide double-edge straight O-flute router bit with left-hand rotation, a 1/2-inch cutting-edge diameter, 1-3/4-inch cutting-edge length, 1/2-inch shank, and 4-inch overall length. Its two cutting edges reduce chip load per edge and create a stronger cutting cross section for compatible plastic-routing applications.
This Series 5500 solid-carbide router bit combines double-edge O-flute geometry with a straight flute and left-hand rotation. Vortex identifies the two-edge design for reduced chip load per cutting edge, a stronger cross section, and effective performance in compatible, slightly harder plastics.
Designed for compatible CNC routers and machining systems configured for left-hand spindle rotation and using a clean, correctly sized 1/2-inch collet or toolholder. Confirm tool projection, RPM, feed, cutting depth, workholding, chip evacuation, and plastic-material suitability before production use.
The Vortex Tool 5554L is part of the Series 5500 double-edge O-flute straight range for plastic machining. This exact SKU is the left-hand-rotation counterpart to the right-hand 5554 and retains the verified 1/2-inch cutting diameter, 1-3/4-inch cutting length, 1/2-inch shank, and 4-inch overall length.
Vortex states that the double-edge O-flute offers the same general cutting characteristics as its single-edge O-flute design while providing two cutting edges that reduce chip load per edge and produce a stronger cross section. The manufacturer notes that this geometry can provide additional tool life in some materials and generally performs better in slightly harder plastics.
The straight-flute configuration avoids an aggressive upward or downward axial chip direction, making chip-clearance strategy, dust extraction, toolpath planning, and material support important parts of the setup. Correct left-hand spindle rotation, collet condition, spindle runout, tool projection, feed rate, RPM, cutting depth, and workholding remain essential to finish quality and tool life.
Technical Specifications
Two cutting edges reduce chip load per edge and create a stronger cross section than a comparable single-edge configuration.
The straight O-flute geometry is paired with verified left-hand rotation for compatible machines and toolpaths requiring that spindle direction.
The 1/2-inch cutting diameter is paired with a 1-3/4-inch cutting length, 1/2-inch shank, and 4-inch overall length.
Confirm that the CNC spindle and programmed toolpath support left-hand rotation before installing this tool. Use a clean, undamaged 1/2-inch collet or compatible holder with adequate shank engagement and safe tool projection. Verify machine RPM limits, feed rate, cutting depth, chip evacuation, dust extraction, workholding, and material suitability before use. Running a left-hand tool in right-hand rotation can damage the workpiece, tool, holder, or spindle interface.
Vortex Tool 5554L combines solid-carbide construction, double-edge O-flute geometry, a straight flute, and verified left-hand rotation with a 1/2-inch cutting diameter and 1-3/4-inch cutting length for compatible plastic-routing operations.
Correct spindle direction, collet fit, tool projection, feed, RPM, cutting depth, chip evacuation, dust extraction, and workholding are essential to achieving the intended finish and service life.