Kennametal 1020417 DA180 Collet Locknut

Product Description

The KENNAMETAL 1020417 is a DA180 series collet locknut designed to secure collets within compatible toolholding systems on CNC machining centers and manual lathes. The locknut threads onto the collet chuck body, clamping the collet and workpiece or cutting tool in place during operation. It is a direct replacement component for worn or damaged locknuts in DA180 collet setups. This part does not support coolant-through functionality. Installation and replacement are performed by machinists, toolroom technicians, and CNC setup personnel as part of routine toolholding maintenance.

The 1020417 locknut is used in DA180 collet chuck assemblies found in production machining environments. It is suited for shops running turning, milling, or drilling operations where DA180 collets are the standard toolholding format. This part is a single-unit replacement component, making it practical for replacing individual worn locknuts without purchasing a full collet assembly.

Key Features

• Designed for DA180 collet series toolholding systems
• Secures collets firmly within the chuck body to maintain concentricity and grip
• No coolant-through design — suitable for dry or flood coolant setups without internal coolant delivery
• Single-unit packaging allows targeted replacement without excess inventory
• Direct OEM-style replacement component for worn or damaged DA180 locknuts

Compatibility

Designed for use with DA180 collet series toolholding assemblies. Compatible with collet chucks and toolholders that accept the DA180 collet format.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Before replacing the locknut, ensure the spindle is fully stopped and locked out per machine-specific lockout/tagout procedures. Use the appropriate spanner wrench for the DA180 locknut to achieve proper seating — do not use pipe wrenches or improvised tools that may damage the thread or seating surface. Inspect the collet and chuck body for wear before reinstalling.