1/4" titanium drill bit. 135 split point for nonslip starting on hard materials. Parabolic flute design for improved heat dissipation and increased life. Industrial M7 grade steel for high-performance drilling in metal, wood, and plastic. Extra hard titanium coating for maximum service life. Jobbers length. Sizes 7/16" and 1/2" have a 3/8" reduced shank. 1 bit per card. 1/4"