Custom heat-treated alloy steel blades. Black oxide coated for corrosion resistance. Precision machined tips for a precise fit. High torque acetate handles for superior durability and solvent resistance. Includes 1 each: T051A T5 x 1-1/2", T062A T6 x 2", T072A T7 x 2", T082A T8 x 2-1/2", T092A T9 x 2-1/2".