Klein Tools Slotted Impact Flip Socket 66044 3 in 1 SAE 12 Point (1 2 Square Drive Steel Eyebolt Hardware Fastening Adapter) Freud Accessories Operating Weight 7 Operating Weight 7 flush joint alignments This prevents binding on extended curved shafts and maintains full surface drive contact with the base nut Brand Manufacturer Klein Tools® Model Part Number OEM SKU 66044 Tool Classification System 3 in 1 Slotted Reversible Impact Flip Socket Core Metallurgy Material Heat Treated Forged Impact Steel Surface Protective Finish Black Manganese Phosphate Corrosion Resistant Finish Primary Input Drive Interface 1 2 inch Square Drive (Includes 1 2" to 3 8" Drive Adapter) Integrated SAE Socket Sizes 9 16 inch and 3 4 inch Hex Socket Point Profile Geometry 12 Point Deep Well Profile Fastener Safety Retention Cross Hole Pin Alignment Detent Retention Manufacturing Quality Standards ASME B107