Techniks 04837 ER25 Collet Chuck Straight Shank 1 Inch

Product Description

The TECHNIKS 04837 is an ER25 collet chuck designed for CNC machining centers, milling machines, and drilling applications requiring precise tool holding. It features a straight shank measuring 1 inch in diameter and an overall length of 3.98 inches, with a 50 mm projection from gauge line to collet nose. The ER25 collet system accommodates tooling from 3/32 inch minimum to 3/4 inch maximum capacity, covering a wide range of end mills, drills, and reamers. This chuck does not include through-coolant capability. It is installed by machinists and CNC setup technicians in production and job-shop environments.

This collet chuck is suited for use in machining centers and manual mills where a straight-shank tool holder is required. The ER25 system is a widely adopted industry standard, making the 04837 a practical fit for shops running mixed tooling inventories. The 50 mm projection provides clearance for most standard workpiece fixturing setups. It is appropriate for light to medium milling, drilling, and reaming operations in both production and maintenance machining contexts.

Key Features

• ER25 collet system with 3/32 inch to 3/4 inch tool capacity range
• 1 inch straight shank diameter for broad spindle compatibility
• 50 mm projection from gauge line to collet nose
• 3.98 inch overall length suits standard machine spindle clearances
• No through-coolant bore keeps design simple and cost-effective for dry or flood-coolant setups

Compatibility

Designed as an OEM-style ER25 collet chuck for use with standard ER25 collets in CNC and manual milling or drilling spindles accepting a 1 inch straight shank.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before installing or removing the chuck. Use a calibrated torque wrench and the appropriate ER25 spanner nut wrench to seat collets properly. Inspect the shank and spindle bore for burrs or contamination before assembly to ensure accurate runout.