PROTO Interchangeable Torque Wrench Head: Alloy Steel, Chrome, 3/8 in Drive Size
The PROTO Interchangeable Torque Wrench Head (MPN J5122) is an SAE box end torque adapter made of alloy steel with a chrome finish. It features a 3/8 in drive size and 12 points, designed for use with PROTO torque…
SKU 3G-OTH-325052
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Product Description
The PROTO Interchangeable Torque Wrench Head (MPN J5122) is an SAE box end torque adapter made of alloy steel with a chrome finish. It features a 3/8 in drive size and 12 points, designed for use with PROTO torque wrenches.
Frequently Asked Questions
What is the PROTO J5122 interchangeable torque wrench head used for?
The PROTO J5122 is an SAE box end torque adapter used to apply precise torque to fasteners in automotive, industrial, and maintenance applications. It attaches to compatible PROTO torque wrenches to enable accurate tightening in confined spaces where standard sockets cannot reach.
What are the specifications of the PROTO J5122 torque wrench head?
The PROTO J5122 is made of alloy steel with a chrome finish. It has a 3/8 in drive size and a 12-point SAE box end configuration. This interchangeable head is designed for use with PROTO torque wrenches and is identified by manufacturer part number J5122.
Where to buy the PROTO J5122 torque wrench head worldwide?
3G Electric supplies the PROTO J5122 interchangeable torque wrench head to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this PROTO torque adapter for your application.
How to select the correct PROTO interchangeable torque wrench head?
To select the correct PROTO interchangeable torque wrench head, match the drive size (3/8 in for J5122) and fastener type (SAE 12-point) to your application. Ensure compatibility with your PROTO torque wrench handle. For confined spaces, the box end design provides access where standard sockets may not fit.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO sae box end torque adapters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












