Amtech F0950 5 Peice Drill Set (1.5,2.5,3,4, 5mm) Complete with Case DURABLE: These drill bits are made from high speed steel (HSS) and are corrosion resistant. HANDY STORAGE BOX: The set includes sizes: 1.5mm, 2.5mm, 3mm, 4mm and 5mm and is supplied in handy plastic storage case. All Amtech hand tools are backed by a three year product replacement warranty and power tools are covered for up to two years, subject to proof of purchase.