170pcs hss drill bit set,METAL BOX PACKG, SIZE:(1.0-8.0X0.5)-10pcs +(8.5-10.0x0.5)-5pcs

170pcs HSS drill bit set,Material  BOX PACKG,

METRIC SIZE:( (1.0-8.0X0.5)-10pcs+(8.5-10.0x0.5)-5pcs

Material: hss4241,4341,9341,M2,M35

170pcs drill bit set