Fairlane HS-81 Round Positioning Gripper 1in Hss

Product Description

The FAIRLANE HS-81 is a round positioning gripper designed to securely locate and hold workpieces during machining, assembly, or fixturing operations. Built from high speed steel with a black oxide coating, this gripper features a coarse tooth grade diamond serration pattern that bites into workpiece surfaces to resist movement under load. It measures 1 inch in diameter and 3/8 inch in height, with a 1/4-28 threaded attachment style for direct installation into fixture plates or tooling bodies. The 3/16 inch flat width accommodates standard wrench engagement during installation and removal.

The HS-81 is suited for industrial fixturing and workholding applications where repeatable part positioning is required. It is commonly installed in machining fixtures, assembly jigs, and inspection nests. The threaded design allows the gripper to be threaded directly into a tapped hole in a fixture plate, making it straightforward to integrate into existing tooling setups. Both production machinists and tool and die technicians will encounter this type of gripper in precision manufacturing environments.

Key Features

• Coarse tooth grade diamond serration pattern provides aggressive grip on workpiece surfaces
• High speed steel construction for hardness and wear resistance in demanding fixturing applications
• Black oxide coating for corrosion resistance and surface protection
• 1/4-28 threaded attachment installs directly into tapped fixture plate holes
• Compact profile at 1 inch diameter and 3/8 inch height for use in tight fixture layouts
• 3/16 inch flat width allows wrench engagement for controlled installation torque

Compatibility

Designed as a threaded round positioning gripper for use in standard fixture plates and tooling bodies with a tapped 1/4-28 hole pattern.

Installation Notes

Installation is performed by qualified toolmakers or machinists. Before installing or removing the gripper, ensure the fixture or machine is de-energized and any clamping or pneumatic pressure is fully relieved. Use an appropriate wrench on the 3/16 inch flat to thread the gripper into the tapped hole to the required seating depth. Avoid over-torquing, which can damage the threads in the fixture plate or distort the gripper body.