Value Collection 210-0118 End Mill Holder R8 Taper Shank

Product Description

The VALUE COLLECTION 210-0118 is an R8 taper shank end mill holder designed to secure end mills in milling machine spindles. The holder accepts a 1.5-inch bore diameter and provides a 70-millimeter projection from the spindle face to the tool-holding end. At 5.12 pounds, this is a solid, mass-produced toolholder suited for standard vertical knee mills and similar R8-spindle machines. Through-coolant is not supported. Licensed machinists and toolroom technicians are the primary installers. The R8 taper is one of the most common spindle interfaces found in manual and CNC knee mills used in job shops and maintenance machining environments.

This end mill holder is intended for use in milling machines equipped with an R8 spindle taper — a standard interface widely found in Bridgeport-style vertical knee mills and comparable machines. The 1.5-inch bore accommodates large-diameter end mills and shell mill arbors of matching shank size. The 70-millimeter projection suits setups where extended reach from the spindle nose is needed. This holder is a practical solution for production shops, toolrooms, and maintenance machining operations running standard R8-spindle equipment.

Key Features

• R8 taper shank for direct mounting in R8-spindle milling machines
• 1.5-inch bore diameter accommodates large-shank end mills
• 70-millimeter projection from spindle face for extended reach applications
• Solid construction at 5.12 pounds for rigidity during cutting operations
• No through-coolant passages — external coolant application only

Compatibility

Designed as an OEM-style replacement or upgrade toolholder for milling machines equipped with an R8 spindle taper interface.

Installation Notes

Installation is performed by a machinist or toolroom technician. The milling machine spindle must be fully stopped and the drawbar loosened before seating or removing the holder. The R8 taper must be clean and free of chips or burrs before insertion to ensure proper seating and runout. Tighten the drawbar to the machine manufacturer's specification; do not over-tighten, as this can damage the taper bore.