KT Pro Tools Impact Socket Set A6402SP10 3 4 Inch Drive (8 Piece SAE CR MO Steel 6PT Standard Wall 1 to 1 1 2 Inch Fastener Driver) Corded Tools Equipped with the PR101 fixed Equipped with the PR101 fixed base and heavy duty metalworking applications Square Drive) Measurement Standard SAE Fractional Imperial Piece Count Quantity 8 Pieces Material Metallurgy Drop Forged Chrome Molybdenum Steel (CR MO) Surface Protective Treatment Precision Heat Treated Black Phosphate Coating Socket Drive Profile 6 Point Hex Profile Socket Length Depth Standard Wall Depth Minimum Socket Size 1 (8) 3 4" Drive 6 Point Standard SAE Impact Sockets: 1"