Sandvik Coromant 6255466 Hydraulic Tool Chuck C6

Product Description

The SANDVIK COROMANT 6255466 is a hydraulic tool chuck designed for precision toolholding in CNC machining applications. It features a C6 modular connection shank that interfaces with compatible modular tooling systems, allowing secure, repeatable mounting on machining centers and turning centers. The chuck accepts a 20 mm bore and delivers a 91 mm projection with a 38 mm nose diameter, providing reach and rigidity in demanding metal-cutting operations. Rated to 20,000 RPM and equipped with through-coolant capability, this chuck supports high-speed milling and drilling where chip evacuation and thermal control are critical. It weighs 3.2 pounds and has an overall length of 129 mm (5.08 inches).

This hydraulic chuck is suited for professional machining environments including aerospace, automotive, and general precision manufacturing. The C6 modular connection is intended for use on machine spindles or tooling systems that accept the C6 interface standard. Through-coolant delivery channels coolant directly to the cutting zone, making it appropriate for deep-hole drilling, reaming, and high-feed milling operations where flood coolant alone is insufficient. Installation is typically performed by a qualified machinist or toolroom technician.

Key Features

• C6 modular connection shank for repeatable, rigid tool mounting
• 20 mm bore diameter with 36 mm clamping depth for secure tool grip
• 91 mm projection (38 mm nose diameter) for extended reach applications
• Rated to 20,000 RPM for high-speed machining compatibility
• Through-coolant design for direct coolant delivery to the cutting edge
• Overall length of 129 mm for predictable gage-line planning

Compatibility

Designed as an OEM-style toolholder for machining centers and modular tooling systems that accept a C6 modular connection interface.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with modular tooling systems. Ensure the machine spindle and all mating interfaces are clean and free of chips or contamination before assembly. Power down and lock out the machine before mounting or removing the chuck. Follow the machine tool manufacturer torque and clamping procedures specified for C6 modular connections.