Accupro 71177190 Spiral Upcut Router Bit 1/4 in Solid Carbide

Product Description

The ACCUPRO 71177190 is a solid carbide spiral upcut router bit designed for precision routing in aluminum and similar non-ferrous materials. With a 0.25 inch cutting diameter and a 0.75 inch length of cut, this single-edge bit removes material efficiently while pulling chips upward and out of the cut, reducing heat buildup and improving surface finish. The 0.25 inch shank fits standard 1/4 inch collet systems, and the 2.5 inch overall length provides adequate reach for most light-duty routing applications. The bright, uncoated finish is appropriate for aluminum, where coatings can cause material adhesion. This bit is used by machinists, CNC operators, and skilled fabricators working with sheet aluminum and soft metals.

This router bit is suited for CNC routing and handheld router applications where a compact, single-flute upcut geometry is needed to evacuate chips cleanly from aluminum stock. The right-hand cutting direction and 22-degree helix angle deliver controlled chip flow without packing the flute. It is appropriate for light passes in aluminum plate, extrusion profiling, and similar tasks where surface quality and chip clearance are priorities. The single-edge design provides aggressive chip ejection in a small-diameter format.

Key Features

• Solid carbide construction for rigidity and wear resistance in aluminum routing
• Upcut flute geometry pulls chips away from the workpiece during cutting
• 22-degree helix angle provides smooth, controlled chip evacuation
• Single-edge router style delivers high chip load per flute at small diameters
• Bright uncoated finish suited for aluminum and non-ferrous material applications
• Right-hand cutting direction compatible with standard CNC and handheld router spindles

Compatibility

Designed for use with standard 1/4 inch collet router systems. Optimized for aluminum material applications as specified by the manufacturer.

Installation Notes

This bit should be installed by a qualified machinist or CNC operator familiar with collet-based toolholding systems. Ensure the router or spindle is fully powered down and locked out before inserting or removing the bit. Seat the shank fully into the collet and tighten to the tool manufacturer's specified collet torque range. Inspect the cutting edges for chips or damage before each use, as carbide is brittle and can fracture if the bit has been dropped or impacted.