Finish: Black Phosphate; Length Format: Deep; Drive Tang Size: 1/2; Drive Type: 6 Point Surface Drive; SAE/Metric: SAE; Set Size Range Min: 3/8-Inch; Set Size Range Max: 1-1/16-Inch; Set Included Storage: Blow Mold Case; Set Piece Count: 12; ASME Specification: B107.2.