Precision Brand 56510 Mill Key Stock 7/8 X 7/8 X 12 in Low Carbon

Product Description

The PRECISION BRAND 56510 is a mill key stock section made from low carbon steel with a plain finish. Key stock is used to create positive drive connections between shafts and rotating components such as gears, pulleys, and sprockets. This piece measures 7/8 inches wide by 7/8 inches high by 12 inches long, giving machinists and maintenance technicians a standard-length blank to cut or fit to exact keyway dimensions. The plain finish allows for straightforward machining, filing, or grinding to final size. It is a staple in mechanical maintenance, shaft-drive assembly, and general fabrication work.

Mill key stock in this size is used across a wide range of industrial and commercial maintenance applications. It fits standard 7/8-inch square keyways found on mid-sized shaft assemblies in HVAC equipment, pumps, conveyor drives, and general power transmission systems. Maintenance mechanics, millwrights, and machinists working on drive shaft repairs or new assemblies typically keep key stock blanks on hand for on-site cutting and fitting. This 12-inch length provides enough material for multiple keys depending on the required finished length.

Key Features

• 7/8 inches wide by 7/8 inches high cross-section fits standard square keyways
• 12 inches long for cutting multiple keys from a single blank
• Low carbon steel construction allows easy machining, filing, and grinding
• Plain finish provides a clean surface ready for fitting or further finishing
• Sold as a single piece with a minimum order quantity of one

Compatibility

Designed for use in standard 7/8-inch square keyway applications across general power transmission and mechanical drive assemblies.

Installation Notes

Key stock installation is typically performed by machinists or millwrights. Shut down and lock out the drive system before removing or installing any shaft components. Cut the key stock to the required length using a saw or mill, then deburr all edges before fitting. Verify that the key seats fully in both the shaft keyway and the hub keyway with no rocking or excessive play before reassembling the drive.