Onsrud 66-912ALTIN Diamond Pattern Router Bit Altin

Product Description

The ONSRUD 66-912ALTIN is a solid carbide diamond pattern router bit engineered for CNC machine applications in composite materials. It features a 0.25-inch cutter diameter, a 1-inch length of cut, and an AlTiN (Aluminum Titanium Nitride) coating that improves surface hardness and heat resistance during high-cycle routing operations. The drill point end geometry allows the bit to plunge directly into the workpiece without pre-drilling. With a 3-inch overall length and a 2-inch shank length, it is sized for standard CNC tooling setups requiring a 1/4-inch collet. Installed by CNC operators and composite fabricators, this bit is suited for precision cutting of layered and reinforced composite panels.

This router bit is designed for use in composite material applications including fiberglass, carbon fiber laminates, and similar engineered panel stock. The diamond pattern cutting geometry reduces delamination and fraying along cut edges, making it appropriate for structural and cosmetic composite work processed on CNC routing equipment. The right-hand cutting direction is compatible with standard CNC router spindle configurations. The 1/4-inch shank diameter fits common CNC collet sizes used in production and job-shop environments.

Key Features

• AlTiN coating improves heat resistance and extends tool life in abrasive composite materials
• Solid carbide construction provides rigidity and dimensional stability under CNC feed rates
• Drill point end type enables direct plunge entry without pre-drilling
• Diamond pattern geometry reduces edge delamination in composite cuts
• Right-hand cutting direction matches standard CNC spindle rotation
• 1/4-inch shank diameter fits standard CNC collet systems

Compatibility

Designed for use with CNC routing machines equipped with a 1/4-inch collet. Optimized for composite material applications as specified by the manufacturer. Part of the ONSRUD 66-900 series.

Installation Notes

Installation should be performed by a qualified CNC operator with the machine powered down and the spindle fully stopped before tool changes. Ensure the collet and collet nut are clean and free of debris before seating the shank. Follow the CNC machine manufacturer's guidelines for runout tolerances and tool projection length. Inspect the cutting edges for chipping or coating wear before each production run.