Feature:1. 99Pcs of twist drill bits including 14 different sizes to suit various applications2. This twist drill bit set is very suitable for professional engineering, DIY, household use3. Can be used for drilling metal, wood, plastic materials, such as aluminum, iron, etc.4. Accurate 135 split point, oxidized gold finish and round straight shank can prevent walking, remove chips and particles faster5. Made after accurate full grinding production to ensure smooth chip movement, very efficientSpecification:Item Type: Twist Drill BitsMaterial: High speed steelSpecification: Approx. 1.5mm / 0.06in(16pcs)2mm / 0.08in(16pcs)2.5mm / 0.1in(15pcs)3mm / 0.12in(10pcs)3.2mm / 0.13in(10pcs)3.5mm / 0.14in(8pcs)4mm / 0.16in(8pcs)4.5mm / 0.18in(3pcs)5mm / 0.2in(3pcs)5.5mm / 0.22in(2pcs)6mm / 0.24in(2pcs)6.5mm / 0.26in(2pcs)8mm / 0.31in(2pcs)10mm / 0.39in(2pcs).Package List:99 x Twist Drill Bits1 x Storage Box