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Description
Armstrong 39-320 20mm 12 Point 1/2" Drive Metric Deep Socket USA
Made in the USA - Quality and Availability
Radius Corner Design Engages the Flats of the Fastener, Not the Corners, Providing Up to 15% -20% More Torque While Reducing Fastener Rounding, Enhancing the Turning of Worn Fasteners
Unique Socket Retention Method, Cold Form Ball Recess, Provides Consistent Secure Retention of the Socket to the Drive Tool Eliminating the Possibility of Either a Loose Fit or Tight Fit
Socket Wall Dimensions are Optimized to Provide Strength While Retaining Access to Restricted Fasteners
Manufactured From High Alloy Steel Using the Most Up-To-Date Manufacturing Process and Heat Treat for Greater Strength and Durability
