Description Features: * Made of high speed, hardened steel manufactured * Shank equal to drill bit diameter * Drill bit color: polished Application: * Designed primarily for high performance drilling in sheet metal, also perform well in all types of wood and plastic High Quality Drill Bits ( High Speed Steel) 13PCS (1/16″ TO 1/4″) KING TOYO HSS DRILL BIT SET Each Stepping by 1/64″ Bits sizes: 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″ & 1/4″ Made in Taiwan