Product details of TOTAL 6 pcs High Speed Steel HSS Twist Drill Bits Set (TACSD0065) Diameter 2mm, 3mm, 4mm, 5mm, 6mm and 8mm. Material: HSS with brazed carbide tip. Type: Double flute conical tip for drilling in metal. Model Number: TACSD0065. TOTAL 6 pcs High Speed Steel HSS Twist Drill Bits Set (TACSD0065) Made of high speed, hardened steel manufactured Application: Designed primarily for high performance drilling in sheet metal Suitable for use at MS Hollow, Stainless Steel, Iron Plate, Aluminium Alloy, Copper, Galvanized Iron Packed by plastic box