Onsrud 65-026 Upcut Spiral Router Bit 0.25in Solid Carbide

Product Description

The ONSRUD 65-026 is a single-edge upcut spiral router bit machined from solid carbide for cutting aluminum, plastics, solid surfaces, and wood. The upcut flute geometry pulls chips up and out of the cut, reducing recutting and heat buildup at the tip. At 0.25 inches in diameter with a 1.25-inch length of cut and a 21-degree helix angle, this bit is well suited to slotting, profiling, and plunge operations where clean chip evacuation and edge quality matter. The right-hand cutting direction and solid carbide construction deliver consistent performance across a range of CNC router and handheld router applications.

This bit is designed for trade and production use in woodworking shops, fabrication facilities, and sign shops running CNC routers. Typical applications include slotting and profiling aluminum composite material, cutting acrylic and other thermoplastics, routing solid surface countertop material, and cutting hardwood or softwood panels. The 1/4-inch shank diameter fits standard 1/4-inch collets on both CNC spindles and handheld routers, making it accessible for a wide range of setups.

Key Features

• Solid carbide construction for durability and heat resistance in production routing
• Upcut flute geometry evacuates chips away from the workpiece surface
• 21-degree helix angle balances chip load and cut quality across multiple materials
• Single-edge design suited to slotting and profiling in aluminum, plastics, solid surfaces, and wood
• Uncoated finish; compatible with standard 1/4-inch collets
• Right-hand cutting direction; non-piloted for free-hand or fixture-guided operation

Compatibility

Designed for use in CNC routers and handheld routers equipped with a standard 1/4-inch collet. Rated for aluminum, plastics, solid surfaces, and wood per manufacturer material application data.

Installation Notes

Installation and tooling changes should be performed by a qualified machinist or CNC operator with the spindle fully stopped and the machine powered down or in an e-stop state. Torque the collet nut to the router or spindle manufacturer specification using the appropriate collet wrench - do not use impact tools on collet nuts. Verify shank seating depth per the spindle manufacturer guidelines before running. Feed rate and spindle speed should be set according to material type and bit diameter; consult the manufacturer cutting data for the 65-000 series.