Jergens 39902 Speed Handle 2 Offset Arms 3/8-16

Product Description

The JERGENS 39902 is a two-arm offset speed handle designed for fast, ergonomic tightening and loosening of threaded fasteners in fixture and tooling applications. The handle features a tapped 3/8-16 hole and is built from aluminum with a mill finish. At 1.5 inches in overall height with a 1-1/8-inch hub diameter and 1-inch hub height, this compact handle delivers the mechanical advantage of an offset arm configuration without adding significant bulk to the assembly. It is installed by machinists, toolmakers, and fixture builders working in production and maintenance environments.

The JERGENS 39902 is suited for use on jigs, fixtures, and workholding assemblies where quick manual adjustment is required. The offset two-arm design allows the operator to spin the handle rapidly through a full rotation, reducing cycle time during repeated clamping operations. The tapped 3/8-16 through-hole threads directly onto standard 3/8-16 bolts or studs, making it a straightforward drop-in addition to new or existing fixture builds.

Key Features

• Two offset arms provide fast, continuous spin for high-cycle clamping applications
• Tapped 3/8-16 hole threads directly onto standard fasteners and studs
• Aluminum construction keeps weight low without sacrificing rigidity
• Mill finish aluminum resists corrosion in typical shop environments
• Compact 1.5-inch overall height fits space-constrained fixture layouts
• 1-1/8-inch hub diameter and 1-inch hub height for consistent grip geometry

Compatibility

Designed as an OEM-style replacement or direct addition for workholding fixtures, jigs, and tooling assemblies using standard 3/8-16 threaded fasteners or studs.

Installation Notes

Installation is performed by machinists or toolmakers and requires no special tools beyond basic hand tools. Thread the handle onto a 3/8-16 bolt or stud and secure it to the appropriate torque for the fixture application per shop standards. Ensure the mating fastener threads are clean and free of debris before installation to prevent galling of the aluminum threads. Power down any associated machinery before making adjustments to fixtures or workholding components.