Gibraltar BH307-G Speed Handle 2 Offset Arms Zinc Plated

Product Description

The GIBRALTAR BH307-G is a two-arm offset speed handle designed for use with machine tools, jigs, and fixture assemblies that require fast manual adjustment. Built from cast iron with a zinc-plated finish for corrosion resistance, this speed handle accepts a 0.749-inch reamed hole and delivers secure, repeatable grip in high-cycle operating environments. The offset arm configuration reduces knuckle clearance issues in tight working areas, and the 1-inch ball diameter provides a comfortable, positive grip during operation. Trade machinists, toolroom technicians, and maintenance mechanics reach for this handle when quick manual rotation of a shaft or threaded fastener is needed without wrench tooling.

The BH307-G suits applications in industrial manufacturing, toolroom setups, and maintenance environments where hand-operated clamping, indexing, or feed adjustments are performed frequently. The zinc plating makes it appropriate for light-wash or humid shop conditions. Its cast iron construction holds up under repetitive loading without deforming at the hub or arm roots. The reamed hole provides close-tolerance fit on finished shafts, keeping runout and wobble minimal during use.

Key Features

• Two offset arms reduce knuckle interference in confined fixture areas
• 0.749-inch reamed hole provides close-tolerance fit on finished shafts
• Cast iron construction resists deformation under repetitive manual loading
• Zinc-plated finish adds corrosion resistance in humid or light-wash shop environments
• 1-inch ball diameter delivers a comfortable, positive hand grip
• 0.625-inch arm diameter and 1.625-inch hub diameter suit standard fixture mounting configurations

Compatibility

Designed as an OEM-style replacement or direct-fit speed handle for machine tool fixtures, indexing jigs, and manual adjustment assemblies that accept a 0.749-inch finished shaft with a standard reamed bore.

Installation Notes

Installation is typically performed by toolroom machinists or maintenance mechanics. Ensure the mating shaft is clean and within tolerance before pressing or sliding the handle onto the bore. Do not force the handle onto an out-of-tolerance shaft, as cast iron hubs can crack under excessive radial stress. Secure per the fixture or machine manufacturer's recommended fastening method before returning the assembly to service.