Value Collection 210-0401 Shell Mill Holder R8 Taper Shank

Product Description

The VALUE COLLECTION 210-0401 is an R8 taper shank shell mill holder designed to mount shell mill cutters on manual and CNC milling machines equipped with an R8-spindle taper. The holder accepts shell mills with a cutting diameter range of 1-1/4 to 1-1/2 inches and features a 1/2-inch pilot diameter for secure, concentric cutter engagement. With an overall length of approximately 150 millimeters, it positions the cutter at a practical working depth for face milling and surface milling operations. No through-coolant port is included. The unit weighs 1.06 pounds. Machinists and toolroom technicians are the primary users of this holder.

This shell mill holder is suited for general-purpose milling work in job shops, maintenance facilities, and production environments running Bridgeport-style knee mills or other manual vertical milling machines with an R8 spindle. It is used when mounting shell mill bodies for face milling flat surfaces, step milling, or squaring stock. The R8 taper is one of the most common spindle interfaces found in light-to-medium-duty vertical mills in North America, making this holder a standard shop item.

Key Features

• R8 taper shank for direct compatibility with R8-spindle milling machines
• Accepts shell mills in the 1-1/4 to 1-1/2 inch cutting diameter range
• 1/2-inch pilot diameter for positive cutter registration
• Overall length of 150 millimeters provides practical cutter projection
• Lightweight at 1.06 pounds for reduced spindle load
• No through-coolant port — suited for dry or flood-coolant-from-outside setups

Compatibility

Designed as an OEM-style replacement or standard tooling addition for vertical milling machines with an R8 spindle taper accepting shell mills in the 1-1/4 to 1-1/2 inch cutting diameter range.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down and de-energize the machine spindle before mounting or removing any toolholder. Insert the R8 shank fully into the spindle bore and tighten the drawbar to the machine manufacturer's recommended specification before initiating any cutting operation. Inspect the taper shank and spindle bore for chips or burrs that could affect seating and runout before each use.