Value Collection 210-0403 Shell Mill Holder R8 Taper Shank

Product Description

The VALUE COLLECTION 210-0403 is an R8 taper shank shell mill holder designed to mount shell mills securely in vertical milling machines equipped with an R8 spindle. The holder features a 1-inch pilot diameter and accepts shell mill cutters ranging from 2-1/4 to 3 inches in cutting diameter. With an overall length of approximately 6.1 inches (155 mm), it provides the extension needed to clear workholding fixtures in typical knee mill and bed mill setups. No through-coolant port is present. Machinists and toolroom professionals install this holder when setting up face milling, shoulder milling, or surface finishing operations on R8-spindle mills.

This shell mill holder is suited for use in manual knee mills, CNC knee mills, and light-duty vertical machining centers that use the R8 taper standard. The 1-inch pilot diameter accommodates industry-standard shell mill bores. It is commonly used in job shops, toolrooms, and production environments where 2-1/4 to 3-inch shell mills are run for stock removal and surface finishing on ferrous and non-ferrous workpieces. Installation requires standard arbor hardware and a draw bar appropriate for the R8 spindle.

Key Features

• R8 taper shank for direct compatibility with R8 spindle machines
• 1-inch pilot diameter fits standard shell mill bores
• Accepts shell mill cutting diameters from 2-1/4 to 3 inches
• Overall length of 155 mm (approximately 6.1 inches) for clearance in common setups
• No through-coolant, keeping the design simple and straightforward
• Weighs 1.68 pounds for easy handling during tool changes

Compatibility

Designed as an OEM-style replacement or upgrade holder for vertical milling machines with an R8 taper spindle accepting shell mills with a 1-inch pilot bore and cutting diameters from 2-1/4 to 3 inches.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down the machine and ensure the spindle is fully stopped before mounting or removing any toolholder. Secure the R8 shank into the spindle using the machine draw bar, tightening to the spindle manufacturer's specified procedure. Verify the shell mill is properly seated on the pilot and fastened with the appropriate cap screw before initiating any cutting operation.