The 17 Piece Precision Kit is manufactured of hardened and tempered steel for ultimate strength and durability. The satin nickel finish resists corrosion and rust. The set includes 5 pairs of pliers: Precision Flat Nose pliers Precision End Cut pliers Precision Linesman Pliers Precision Diagonal Cut Pliers and Precision Long Nose pliers. Set also includes screwdrivers: Phillips PH0 x 50mm Phillips PH0 x 50mm FLAT 3.0 x 50mm FLAT 2.5 X 50MM TORX T20 x 50mm TORX T15 x 50mm TORX T15 x 50mm TORX T9 x 50mm TORX T8 x 50mm TORX T 7x 50mm and TORX T6 x 50mm. Each hand tool has a soft comfort handle which helps reduce hand fatigue and prevents slipping. The precision machined jaws are designed for maximum gripping and turning. A black zipper case in included with the set keeping the hand tools organized and in place. The 17 Piece Precision Kit meets or exceeds ANSI Standard.