Value Collection 219-4100 Shell Mill Holder 4MT 1 in Pilot

Product Description

The VALUE COLLECTION 219-4100 is a taper shank shell mill holder designed to mount shell mill cutters on milling machines equipped with a 4MT (Morse Taper No. 4) spindle. The holder features a 1-inch pilot diameter and accepts shell mills in the 2-1/4 to 2-3/4 inch cutting diameter range. Weighing 3.09 pounds, it is built for rigid, repeatable cutter location in both manual and CNC-assisted knee mill setups. Machinists and toolroom technicians install this holder as part of a standard face milling or surface milling setup on compatible mill spindles.

This shell mill holder is suited for use in job shops, toolrooms, and production machining environments where 4MT taper spindle machines are in service. Typical applications include face milling, shoulder milling, and surface finishing operations on ferrous and non-ferrous materials. The 1-inch pilot keeps the shell mill cutter centered and stable during operation. Through-coolant is not supported, so flood or mist coolant delivery must be applied externally at the cutter.

Key Features

• 4MT (Morse Taper No. 4) taper shank for direct spindle mounting without an adapter
• 1-inch pilot diameter for accurate shell mill cutter registration
• Compatible with shell mills in the 2-1/4 to 2-3/4 inch cutting diameter range
• No through-coolant passage — external coolant delivery required
• Solid construction at 3.09 pounds for rigid cutter support during heavy face milling passes

Compatibility

Designed for use with shell mill cutters in the 2-1/4 to 2-3/4 inch cutting diameter range on milling machines fitted with a 4MT (Morse Taper No. 4) spindle socket.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down and de-energize the milling machine and verify the spindle is fully stopped before mounting or removing the holder. Clean the spindle bore and taper shank thoroughly before seating the holder to ensure full taper contact and prevent fretting. Use a draw bar or retention mechanism appropriate to the machine spindle to secure the holder before operation.