Parlec 10KY Shell Mill Holder Drive Key 1 in Pilot

Product Description

The PARLEC 10KY is a shell mill holder drive key designed to secure shell mill cutters to their arbors during milling operations. The drive key transmits torque from the holder to the cutter by engaging the drive slot on the shell mill, preventing rotation under cutting loads. It is compatible with a 1 inch pilot diameter and features a 1/2-20 unified national fine thread for positive retention. This component is installed by machinists and toolroom technicians working with vertical or horizontal milling machines, machining centers, and manual mills where shell mill tooling is in use.

The 10KY fits shell mill holders with a 1 inch pilot diameter, a standard size widely used in production and job-shop milling environments. It is suited for both conventional and CNC machining centers where shell mill face cutters, indexable cutters, and similar large-diameter milling tools are mounted. The threaded fastener design allows for straightforward removal and reinstallation when rotating or replacing cutter inserts or changing out tooling.

Key Features

• Compatible pilot diameter of 1 inch for standard shell mill holders
• 1/2-20 UNF thread for secure, positive cutter retention
• Transmits torque directly to the shell mill cutter during milling operations
• Lightweight at 0.1 pounds for easy handling during tooling changes
• Designed as a replacement or spare drive key for shell mill arbor setups

Compatibility

Designed as an OEM-style replacement drive key for shell mill holders with a 1 inch compatible pilot diameter and 1/2-20 thread specification.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the milling machine spindle is fully stopped and locked out before removing or installing drive keys. Use the correct wrench size for the 1/2-20 threaded fastener and do not overtighten, as this may damage the thread or cutter slot. Inspect the drive slot on the shell mill cutter for wear or damage before reinstalling the key.