Onsrud 63-790 Upcut Spiral Router Bit 0.5in Solid Carbide

Product Description

The ONSRUD 63-790 is a single-edge upcut spiral router bit engineered for cutting a wide range of thermoplastic and solid surface materials. Constructed from solid carbide, the bit offers the rigidity and edge retention needed for clean, consistent cuts in production routing applications. The 0.5-inch cutting diameter pairs with a 1.625-inch length of cut and a 0.5-inch shank diameter, making it a practical choice for both CNC routing tables and hand-held router setups where precise plastic machining is required. The 21-degree helix angle and right-hand cutting direction promote efficient chip evacuation upward and away from the workpiece.

This bit is designed for use on thermoplastics and engineered plastics including ABS, Acetal, Acrylic, HDPE, HIPS, PE, PET, Polycarbonate, Polypropylene, Polystyrene, UHMW, and Solid Surfaces. It is well suited for fabrication shops, sign makers, and industrial routing operations where clean edge quality and minimal melting or chipping in plastic substrates are priorities. The uncoated solid carbide construction keeps the cutting edge sharp through extended run cycles on abrasive plastics.

Key Features

• Solid carbide construction for rigidity and long edge life in plastic routing
• Upcut flute geometry evacuates chips upward to reduce recutting and heat buildup
• 21-degree helix angle optimized for thermoplastic materials
• Single-edge design for aggressive feed rates and clean finishes in soft plastics
• Right-hand cutting direction compatible with standard CNC and handheld router setups
• Uncoated finish maintains sharp cutting edge without coating interference on plastics

Compatibility

Compatible with routers accepting a 0.5-inch shank collet. Suitable for CNC routing machines and handheld routers used in plastics fabrication. Material compatibility includes ABS, Acetal, Acrylic, HDPE, HIPS, PE, PET, Polycarbonate, Polypropylene, Polystyrene, UHMW, and Solid Surfaces.

Installation Notes

Installation should be performed by a qualified operator familiar with CNC or handheld router setup. Ensure the router is fully powered down and the collet is fully de-energized before inserting or removing the bit. Insert the shank fully into the collet and tighten to the router or collet manufacturer specifications. Verify spindle speed and feed rate are appropriate for the specific plastic material being cut before starting the machine.