Armstrong 21-218 3/4" Drive 9/16" Deep Impact Socket 6pt. USA 3-5/8" which allows the torsion section

which allows the torsion section of the bit to flex under load and take pressure off of the bit tip for increased durability in high torque applications

SAE 12 Point Set 3/8" Drive

This is not a defect

The cold-formed blades are designed to be stronger

Cordova's NIOSH-approved particulate respirators are perfect for your next construction project

Armstrong 21-218 3/4" Drive 9/16" Deep Impact Socket 6pt. USA 3-5/8" which allows the torsion sectionArmstrong 21 218 3 4" Drive 9 16" Deep Impact Socket 6pt. 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 Eye d markings optimize size visibility, also providing SAE metric differentiation Aeronca x 7 1428 trk2 n11