Onsrud 66-928ALTIN Diamond Pattern Router Bit Altin

Product Description

The ONSRUD 66-928ALTIN is a solid carbide diamond pattern router bit designed for CNC machining of composite materials. It features an AlTiN (Aluminum Titanium Nitride) coating that increases surface hardness and heat resistance during high-speed cutting. The bit measures 0.375 inches in cutter diameter with a 1.625 inches length of cut and a 3.5 inches overall length. The drill point end type allows plunge entry directly into the workstock without a pre-drilled hole. Right-hand cutting direction is standard. This bit is intended for installation and use by CNC machine operators and programmers working in production or fabrication environments.

The 66-928ALTIN is suited for routing and trimming composite materials on CNC machines. The diamond pattern geometry is specifically developed for composite substrates, where conventional spiral flute bits may cause delamination or fiber pullout. The 3/8 inch shank diameter fits standard CNC router collets. With a 1.875 inches shank length and 1.625 inches of cutting length, this bit handles through-cuts and profiling passes in typical composite panel thicknesses encountered in aerospace, marine, and industrial fabrication work.

Key Features

• Solid carbide construction for rigidity and wear resistance in abrasive composite materials
• AlTiN coating improves heat resistance and extends tool life at elevated cutting speeds
• Diamond pattern flute geometry reduces delamination and fiber pullout in composite substrates
• Drill point end type enables direct plunge entry without pre-drilling
• Right-hand cutting direction compatible with standard CNC router spindle rotation
• 3/8 inch shank fits common CNC router collet systems

Compatibility

Designed for use in CNC machines with a 3/8 inch collet. Optimized for composite material applications as part of the ONSRUD 66-900 series.

Installation Notes

This bit is installed and changed by CNC machine operators following standard tooling procedures. Power down and lock out the CNC spindle before inserting or removing any tooling. Ensure the collet and collet nut are clean and free of debris before seating the shank. Follow the machine manufacturer and tooling manufacturer feed and speed recommendations for the specific composite material being cut.