This 20-piece set contains only the best quality HSS ground drills. Handy slide-top box releases only chosen drill. • High-speed steel metric drills from 0.3 to 1.6mm • Plastic case dispenses one drill at a time • Keeps drill bits securely in place • Ideal for hobby & smaller DIY tasks Sizes include: 0.30mm, 0.35mm, 0.40mm, 0.45mm, 0.50mm, 0.55mm, 0.60mm, 0.65mm, 0.70mm, 0.75mm, 0.80mm, 0.85mm, 0.90mm, 0.95mm, 1.00mm, 1.20mm, 1.30mm, 1.40mm, 1.50mm, 1.60mm.