Onsrud 61-164 Single Edge Router Bit Solid Carbide

Product Description

The ONSRUD 61-164 is a single-edge, straight-flute router bit designed for precision cutting in hard plastics and similar engineered materials. Built from solid carbide, this bit features a 0.5-inch cutter diameter, a 1.625-inch length of cut, and a 4-inch overall length. The single-flute geometry clears chips aggressively, reducing heat buildup in thermoplastic materials. It is intended for use in CNC routing applications and is installed and operated by machinists, fabricators, and shop technicians working with plastic sheet goods.

This bit is suited for routing extruded acrylic, HDPE, PVC, polycarbonate, polyethylene, polypropylene, polystyrene, UHMW, and other hard plastics. The right-hand cutting direction and straight flute profile make it well-suited for profile cuts, through cuts, and slotting operations on flat sheet stock. It is part of the ONSRUD 61-000P series, which targets hard material applications where clean edge finish and consistent chip evacuation are required.

Key Features

• Solid carbide construction for hardness and wear resistance in abrasive thermoplastics
• Single-edge, single-flute design promotes efficient chip clearance and reduced heat
• 0.5-inch cutter diameter with a matching 0.5-inch shank for secure collet grip
• 1.625-inch length of cut allows full-depth passes in typical plastic sheet thicknesses
• Right-hand cutting direction compatible with standard CNC router spindles
• Square end geometry produces flat-bottomed cuts and clean edge profiles

Compatibility

Rated for use on extruded acrylic, HDPE, PVC, polycarbonate, polyethylene, polypropylene, polystyrene, and UHMW. Part of the ONSRUD 61-000P series for hard material routing applications. Accepts standard 0.5-inch collets.

Installation Notes

This bit is installed and operated by machinists or CNC technicians. Ensure the router or CNC spindle is fully powered down and de-energized before changing tooling. Seat the shank fully into a matched 0.5-inch collet and torque the collet nut according to the router manufacturer specifications. Verify feed rate and spindle RPM are appropriate for the specific plastic being cut before beginning a production run.