Onsrud 66-940ALTIN Diamond Pattern Router Bit Solid Carbide

Product Description

The ONSRUD 66-940ALTIN is a solid carbide diamond pattern router bit designed for high-performance cutting in composite materials on CNC machines. It features a 0.5 inch cutter diameter, a 1.625 inch length of cut, and a 4 inch overall length with a drill point end type that allows plunge entry. The AlTiN coating increases surface hardness and heat resistance, extending tool life in demanding routing applications. Right-hand cutting direction suits standard CNC spindle configurations. This bit is built for production environments where consistent edge quality and tool longevity in composite stock are priorities.

This router bit is intended for use in CNC machining applications involving composite materials such as fiberglass, carbon fiber laminates, and similar engineered substrates. Its diamond pattern geometry and drill point profile make it well suited for operators who need both plunge and profile cutting in a single tool. The 2.375 inch shank length and 0.5 inch shank diameter provide secure tool holding in standard CNC collets. Typical users include CNC operators, fabricators, and production shops processing composite panels and structural laminates.

Key Features

• Solid carbide construction for rigidity and wear resistance in abrasive composite materials
• AlTiN coating for elevated heat resistance and extended tool life
• Drill point end type enables direct plunge entry without pre-drilling
• Diamond pattern geometry promotes chip evacuation and clean edge finish
• Right-hand cutting direction compatible with standard CNC machine spindles
• Part of the 66-900 series, designed specifically for composite material applications

Compatibility

Designed for use in CNC machines with a 1/2 inch collet. Intended for composite material applications as specified by the 66-900 series product line.

Installation Notes

Installation should be performed by a qualified CNC operator or tooling technician. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the shank fully and evenly in the collet to the recommended depth and torque the collet nut per the machine manufacturer specifications. Verify runout with a dial indicator before beginning production cuts, as excessive runout will accelerate wear on carbide tooling.