Set Of Drill Bit Of Size 1) 21 Mm - M2 Hss Taper Shank Twisted Drill 21Mm Dia X 145 Mm Fl X 243Mm Oal 2) Drill Bit 26.5 Mm M2 Hss Taper Shank Twisted Drill 26.5Mm Dia X 165Mm F L X 286Mm Oal , As Per Is:5103-1969 Make/Brand: Addison /High Speed Steel/Diamond /Bosch/Atorse O Nly. [ Warranty Period: 30 Months After The Date Of Delivery ] ]