Techniks 7582402 Face Mill Holder R8 1 in Pilot

Product Description

The TECHNIKS 7582402 is an R8-taper face mill holder designed for mounting face mills and shell mills on manual milling machines equipped with an R8 spindle. It features a 1-inch pilot diameter and a 4.85-inch arbor length, providing the reach and centering precision required for secure cutter seating. The R8 shank is the standard taper found on Bridgeport-style knee mills and similar equipment. This holder is installed by machinists and tool-and-die professionals performing face milling, shoulder milling, and surface stock removal operations.

This face mill holder is suited for use in job shops, maintenance machine rooms, and production environments running R8-spindle vertical knee mills. The 1-inch pilot diameter accommodates standard face mill and shell mill bores of that size. The 4.85-inch arbor length provides clearance for cutters requiring additional standoff from the spindle nose. It is a direct-mount style holder requiring no intermediate adapter.

Key Features

• R8 taper shank for direct mounting in Bridgeport-style and compatible vertical knee mill spindles
• 1-inch pilot diameter for positive cutter alignment and concentricity
• 4.85-inch arbor length for extended cutter clearance from the spindle nose
• Solid construction supports the clamping forces and torque loads of face milling operations
• Compatible with standard face mills and shell mills bored to 1-inch pilot

Compatibility

Designed as an OEM-style replacement and standard tooling component for vertical milling machines with an R8 spindle taper, accepting face mills and shell mills with a 1-inch pilot bore.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Power down and de-energize the milling machine and confirm the spindle is fully stopped before changing tooling. Clean the R8 taper bore and the holder shank with a lint-free cloth before seating to prevent fretting and runout. Secure the drawbar to the manufacturer-specified engagement before operating the spindle.