Onsrud 60-251 Upcut Spiral Router Bit 0.5 in Solid Carbide

Product Description

The ONSRUD 60-251 is a three-edge upcut spiral router bit machined from solid carbide and designed for high-feed routing in CNC and handheld router applications. The upcut flute geometry pulls chips up and away from the cut, promoting clean evacuation and reduced heat buildup at the tool tip. With a 0.5 inch cutter diameter, a 2.125 inch length of cut, and a 0.5 inch shank diameter, this bit is suited for full-depth passes in sheet goods and solid material. A 10-degree helix angle and right-hand cutting direction complete the geometry. Installation and use are appropriate for experienced woodworking and fabrication professionals.

The 60-251 is suited for routing composite plastics, natural wood, general plastics, and solid surface materials. It is a strong fit for production CNC router tables where consistent chip evacuation and clean edge quality in sheet stock are priorities. The 4.5 inch overall length and 2.375 inch shank length allow secure tool holding with adequate reach for typical nested-part and flat-sheet routing operations. No pilot bearing is included, making this a freehand or fixture-guided bit.

Key Features

• Three-edge upcut geometry for aggressive chip evacuation and reduced recutting
• Solid carbide construction for extended tool life in abrasive materials
• 0.5 inch cutter diameter with 2.125 inch length of cut for deep single-pass routing
• 10-degree helix angle, right-hand cutting direction
• Uncoated finish - compatible with standard carbide resharpening services
• No pilot bearing - designed for CNC fixture or template-guided use

Compatibility

Designed for use with routers and CNC spindles accepting a 0.5 inch shank collet. Rated for composite plastics, natural wood, plastics, and solid surface materials per manufacturer material application data. Part of the ONSRUD 60-200 series.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator familiar with router tooling and collet systems. Ensure the router or spindle is fully powered down and locked out before changing bits. Insert the shank fully into the collet and tighten to the collet manufacturer's specified procedure - never run a bit with insufficient shank engagement. Verify spindle speed and feed rate are appropriate for the material being routed before initiating a cut.