Description

Armstrong 19-818 3/8″ Drive 9/16″ Impact Socket 12 Point USA

• Made in the USA 
• Radius corner design engages the flats of the fastener, not the corners, providing up to 15-Percent -20-Percent more torque while reducing fastener rounding, enhancing the turning of worn fasteners
• 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