Onsrud 65-025 Upcut Spiral Router Bit 1/4 in Solid Carbide

Product Description

The ONSRUD 65-025 is a single-edge upcut spiral router bit machined from solid carbide and designed for clean, efficient material removal in routing applications. With a 0.25-inch cutter diameter and a 0.875-inch length of cut, it evacuates chips upward and away from the cut zone, helping to maintain a clean kerf and reduce heat buildup at the cutting edge. The 1/4-inch shank fits standard collets on CNC routers and handheld routing equipment. This bit is uncoated and runs right-hand cutting direction, making it a straightforward drop-in for production and shop environments alike.

The 65-025 is suited for routing aluminum, plastics, solid surfaces, and wood. Its upcut geometry works well in through-cuts and plunge operations where chip clearance is a priority. The 2.5-inch overall length and 1.625-inch shank length provide adequate reach for typical fixture and spoilboard setups. Both production CNC operators and skilled woodworking or fabrication shop technicians will find this bit at home in single-pass profiling, slotting, and contour work on flat stock.

Key Features

• Solid carbide construction for extended tool life across abrasive materials
• Upcut flute geometry pulls chips up and out of the cut, reducing re-cutting and heat
• Single-edge design delivers high chip load capacity per flute
• Right-hand cutting direction compatible with standard CNC router spindles
• Uncoated finish suited for aluminum, plastics, solid surfaces, and wood
• 1/4-inch shank fits widely available collet sizes on CNC and handheld routers

Compatibility

Designed for use in CNC routers and handheld routing equipment with a 1/4-inch collet. Part of the ONSRUD 65-000 series. Material applications include aluminum, plastics, solid surfaces, and wood.

Installation Notes

Installation should be performed by a qualified CNC operator or machinist with the spindle fully powered down and locked out before changing tooling. Insert the shank fully into the collet and tighten to the router or spindle manufacturer's specified torque using the appropriate collet wrench - do not over-tighten or leave the shank seated less than the full collet depth. Verify runout with a dial indicator when precision work is required. Always confirm feed rate and spindle speed settings are appropriate for the material being cut before beginning a pass.