Klein Tools Coated Impact Socket Set 66033 6 Piece 12 Point SAE (1 2 Square Drive 4140 Steel Coaxial Hardware Installation Kit) Drill Bits Compact & Portable: Easy to Compact & Portable: Easy to move Product Stock Number DSQ22P100 Shank Diameter 1 4 inch Shank Style Hex Shank Screwdriver Head Size #2 (SQ2) Screwdriver Style Square (Robertson) Overall Length 2 inches Pack Quantity 100 Count Performance Class Impact Strong Rated Internal Geometry Torque Resistant Torsion Zone Surface Layer Corrosion and Rust Resistant Shielding Pro Tip: To completely exploit the 50X lifetime metric of these Impact Strong bits Severe Environmental Power Tool Use: Protecting socket surfaces against jobsite abrasion and rust while speeding size identification