37pc Drill Bit Set Includes 16pc 25mm Cr-V Bits, 8pc 50mm Cr-V Bits, 5pc 38mm Nut Driver, 8pc HSS Drill Bits. ... In plastic case 37pc Drill Bit SetContains:16pc 25mm Cr-V Bits:SL: 4,5,6mm, PH:#1, ... ,2,3 5pc 38mm Nut Driver:5mm,6mm,7mm,8mm,10mm8pc HSS Drill Bits:2mm,2.5mm,3mm,3.5mm, ... 4mm,4.5mm,5mm,5.5mmPacked in plastic case 37pc Drill Bit Set