Techniks 04839 ER32 Collet Chuck 1 in Straight Shank

Product Description

The TECHNIKS 04839 is an ER32 collet chuck with a straight shank designed for use in CNC machining centers, manual mills, and drill presses where precise tool holding is required. The chuck features a 1 inch shank diameter and a 4 inch overall length with a 50 mm projection from the spindle face. It accepts ER32 collets with a clamping range from 1/16 inch up to 3/4 inch, covering a wide variety of end mill, drill, and reamer shank sizes common in production and job-shop environments. Machinists and CNC setup technicians are the primary users of this toolholder.

The 04839 is suited for straight-shank spindle connections on vertical machining centers and manual knee mills where ER collet systems are standard. The 50 mm projection provides clearance for moderate-depth workpiece features without requiring extended-reach tooling. Applications include milling, drilling, reaming, and tapping operations across a broad range of materials. No through-coolant path is present, making this chuck appropriate for dry or flood-coolant setups where internal coolant delivery is not required.

Key Features

• ER32 collet system with a clamping range of 1/16 inch to 3/4 inch
• 1 inch straight shank diameter for direct spindle mounting
• 4 inch overall length with 50 mm projection
• Compatible with standard ER32 collets for versatile tooling setups
• No through-coolant - suitable for flood or dry machining environments
• 1 pound weight supports balanced operation at typical spindle speeds

Compatibility

Designed for use with standard ER32 collets in straight-shank spindle applications on vertical machining centers and manual milling machines accepting a 1 inch straight shank toolholder.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully powered down and at a complete stop before mounting or removing the chuck. Clean the shank and spindle bore thoroughly before insertion to prevent runout caused by contamination. Tighten the ER32 collet nut to the collet manufacturer's recommended procedure using a properly sized spanner wrench - do not use improvised tools that may damage the nut or collet seating surface.