?When you get a small set of drill bits£¬ it is also common to lose or break one or two. And it might be a trouble when you need one of the missing drill. Well£¬ this flock of drill bits has more duplicates in one sizes£¬ no more worrying of the missing drill bits. Besides£¬ it comes with a blow molding storage case£¬ which is convenient to carry.<br><br><strong>Features:</strong><br>High-speed steel£¬ high quality.<br>High hardness£¬ performed well in cutting and drilling.<br>Excellent workmanship£¬ stable performance and durable.<br>Suitable for drilling hole of the thin plate£¬ wood or plastic that in low hardness.<br>It includes 150 sizes(0.4-3.2mm) in one drill bit set£¬ which meet your different needs perfectly.<br>Comes with a high quality blow molding storage box£¬ twist drills in every sizes have their own slot.<br><br><strong>Twist Drill Model:</strong><br>0.4mm£¬ 0.5mm£¬ 0.6mm£¬ 0.7mm£¬ 0.8mm£¬ 0.9mm 10 pcs of each<br>1.0mm£¬ 1.1mm£¬ 1.2mm£¬ 1.3mm£¬ 1.4mm£¬ 1.5mm£¬ 1.6mm£¬ 1.8mm£¬ 2.0mm£¬<br>2.1mm£¬ 2.2mm£¬ 2.3mm£¬ 2.4mm£¬ 2.5mm£¬ 2.6mm£¬ 2.8mm£¬ 3.0mm£¬ 3.2mm 5pcs of each<br><br><strong>Specifications:</strong><br>Material: High-speed steel<br>Package Weight: Approx. 303g / 10.69oz<br>Package Size: Approx. 20 * 15 * 3.5cm / 7.87 * 5.91 * 1.38in<br><br><strong>Package List:</strong><br>150 * Twist Drill<br><br><strong>Note:</strong><br>This twist drill bits are not suitable for high hardness materials(such as stainless steel).