Lyndex-nikken 330-048 Hex Collet 3/4 Inch 1.988-20 Thread

Product Description

The LYNDEX-NIKKEN 330-048 is a hex collet designed to hold hex-shank tooling in compatible collet chucks and tool holding systems used in CNC machining and precision metalworking. With a 3/4-inch hex capacity, a 1.988-20 external thread, and an overall length of 3.75 inches, this collet delivers accurate, repeatable tool clamping for hex-profile cutting tools and drivers. It is installed by machinists and toolroom technicians working on milling machines, machining centers, and related equipment where secure hex tool retention is required.

This collet is suited for production and job-shop environments running hex-shank tooling in applications such as form milling, special-profile cutting, or driven fastener operations. The 3/4-inch size accommodates standard hex tooling at that dimension, and the 1.988-20 external thread ensures proper engagement with matching collet chuck bodies. It is appropriate for both high-volume production runs and low-volume precision work where tool runout control matters.

Key Features

• 3/4-inch hex capacity for secure retention of hex-shank tools
• 1.988-20 external thread for compatibility with matching collet chuck bodies
• 3.75-inch overall length provides standard reach for typical tooling setups
• Hex collet profile prevents rotational slippage under cutting loads
• Single-piece construction suited for consistent, repeatable tool changes

Compatibility

Designed as an OEM-style replacement or direct-fit collet for collet chuck systems accepting a 1.988-20 external thread with a 3/4-inch hex bore. Verify thread specification and collet chuck body compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before inserting or removing the collet. Use the appropriate collet wrench or spanner for the chuck body - do not use pipe wrenches or improvised tools that could damage the thread or collet body. Inspect the collet bore and external thread for wear or debris before each use to maintain clamping accuracy.