This set contains numbered bits: 1-60, lettered bits A-Z, and fractional bits 1/16-1/2 by 64ths. All bits are high speed, jobber length US made Norseman drill bits. Comes in US made Huot metal box. - 115 pc High Speed Norseman Drill Bit Set 115 pc High Speed Norseman Drill Bit Set (J-115)