Value Collection 210-5509 Shell Mill Holder Straight Shank

Product Description

The VALUE COLLECTION 210-5509 is a straight-shank shell mill holder designed to secure shell mill cutters on manual and CNC milling machines. It accepts a 1.25-inch pilot diameter and features a 3/4-inch shank diameter, providing a rigid, concentric connection between the spindle and cutter. With an overall length of approximately 159 millimeters (6.26 inches), this holder positions the cutter at a consistent working height. No through-coolant port is present. Machinists and toolroom technicians install this holder in standard milling setups where a straight shank configuration is required.

This shell mill holder is suited for face milling and large-diameter end milling operations on vertical knee mills, bed mills, and compatible CNC machining centers equipped with a straight-shank spindle interface. It is typically used in production and jobshop environments where shell mills ranging up to the 1.25-inch pilot size are run on ferrous and non-ferrous workpieces. No specific machine model compatibility data was provided with this listing.

Key Features

• 1.25-inch pilot diameter accommodates standard shell mill bores
• 3/4-inch straight shank interfaces with compatible milling machine spindles
• Overall length of 159 millimeters (approximately 6.26 inches) for consistent cutter positioning
• Solid construction with no through-coolant passage keeps the design straightforward and easy to maintain
• Sold individually — one holder per package

Compatibility

Designed as an OEM-style replacement or standard tooling addition for milling machines that accept a 3/4-inch straight-shank holder with a 1.25-inch pilot shell mill interface.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before mounting or removing the holder. Ensure the shank bore and holder shank are clean and free of chips or burrs before seating to maintain concentricity. Torque all retention hardware to the machine or tooling manufacturer's specifications — do not estimate torque values.