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Proto 9-Pc. 12 Point Torque Adapter Set for Use with 3/8in. Drive, Model# J5100

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- Designed for easy torque calibrations
- Adapters measure 2in. from the center of the square drive to the center of the adapter opening
- Special heat-treated alloy steel increases strength and durability
- Box end wall thickness provides strength, allows ample room for access to difficult fasteners
- 12 point box end allows fine indexing for speed and access
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