Lyndex-nikken 340-080 Square Collet 1-1/4 Inch

Product Description

The LYNDEX-NIKKEN 340-080 is a square collet designed to grip square-shank tooling in compatible collet chucks and toolholding systems. With a 1-1/4 inch square bore, a 1.988-20 external thread, and an overall length of 3-3/4 inches, this collet provides secure, repeatable clamping force for milling, drilling, and turning operations on CNC and manual machine tools. It is intended for use by machinists and toolroom technicians who require precise, rigid workholding for square-profile cutting tools and stock. The collet weighs 1.67 pounds, reflecting a solid, precision-ground construction appropriate for production environments.

Square collets are used in applications where round collets are insufficient - specifically when gripping square-shank end mills, lathe toolbits, or square bar stock that must be held without rotation. This collet is suited for use in both production machine shops and toolroom settings. It fits into collet chuck systems that accept the 1.988-20 external thread specification, making it appropriate for heavy-duty spindle and turret toolholding applications in residential or commercial machine tool environments.

Key Features

• 1-1/4 inch square bore for gripping square-shank tooling and stock
• 1.988-20 external thread for secure engagement with compatible collet chucks
• 3-3/4 inch overall length provides extended reach and gripping depth
• Solid construction at 1.67 pounds ensures rigidity under machining loads
• Designed for repeatable, precise tool registration in CNC and manual setups

Compatibility

Designed for use in collet chuck systems that accept a 1.988-20 external thread interface. Consult your toolholding system specifications to confirm thread and bore compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with collet chuck systems. Power down and lock out the machine spindle before installing or removing the collet. Ensure mating chuck threads are clean and free of chips or debris before engagement. Do not exceed the torque or speed ratings specified by the collet chuck manufacturer.