The 28 Piece Precision Screwdriver Set features an assortment of extended-shaft blades, hooks and probes, carefully chosen for use in the jewelry, computer and electronics repair industries. The slender 600 series handle provides the essential precision feel needed for working on delicate components. 28 piece set with interchangeable, extended-shaft blades, hooks and probes. Includes 19 heat-treated blades: 1/32, 3/64, 1/16, 5/64, 3/32 in. Slotted, number 0000, 000, 00 Phillips, T6, T7, T8, T9 Torx, .50, 1/16 in., 5/64 in. Hexagonal, 3/32 in., 1/8 in., 5/32 in. Nut-Driver, Blade Extension. Includes 8 stainless steel probes: 35 Degree Bend, 90 Degree Bend, 180 Degree Loop, Straight, 180 Degree Hook, Triple Bend, Double Bend, Scratch Awl. Blade selection reflects most common choices in jewelry and electronics repair. Locking screw chuck holds blades firmly in place and allows lightning-fast swapping. Black oxide coating on blades prevents rust and corrosion. Zipper case for storage. Exclusive Versa-Grip handle for comfort and control.