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CDI Torque Products open-end wrench head, alloy steel, J drive, 9/16 inch size

CDI Torque Products

CDI Torque Products QJO18A Open End Torque Wrench Head J 9/16 In

SKU CH-2MJM-HGFG3

An interchangeable torque-wrench head with a 9/16 in open end and J-series 27/64 in drive, made from alloy steel

  • TypeTorque Wrench Accessories
  • Open-end design allows access to tight fasteners
  • 9/16 inch opening fits common automotive hardware
  • J-series 27/64 inch drive matches compatible torque wrenches
  • Alloy steel construction resists wear under high torque

Interchangeable Torque Wrench Head

This open-end head fits J-drive torque wrenches with a 27/64 in drive size. The alloy-steel construction handles 9/16 in fasteners and measures 3 3/16 in overall length. It is designed for mechanics who need a single interchangeable head for targeted torque applications.

Upgrades from fixed-head wrenches

The interchangeable design replaces a dedicated fixed-head wrench when only occasional 9/16 in access is required. The jump is worth it if the operator already owns a compatible J-drive handle and wants to reduce tool count. Buyers needing other drive sizes or box-end profiles will need additional heads.

Highlights

  • Open-end design allows access to tight fasteners
  • 9/16 inch opening fits common automotive hardware
  • J-series 27/64 inch drive matches compatible torque wrenches
  • Alloy steel construction resists wear under high torque

Specifications

BrandSnap-On Industrial Brands
TypeTorque Wrench Accessories

Questions about this item

What drive size does the J-series head use to attach to the wrench?

The head uses a J drive measuring 27/64 in for connection to compatible torque wrenches.

How do you install the head, and what step is often missed?

Align the 27/64 in drive with the wrench receiver, push until the locking pin clicks, then verify the 9/16 in open end is fully seated before applying torque.

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