Description: Owning bits that have different sizes, this kit is complete and pretty practical, and with the dedicated storage box, it is portable and convenient to store. Designed with short chisel edge, the drilling resistance can be reduced when using, these bits have high hardness, good abrasion resistance and long-lasting work ability. These drill bits are made of high speed steel, which is durable. The height of the storage box is 19cm, the length is 11cm and the width is 6cm. It is suitable for drilling steel, cast iron, non-ferrous metals, alloy and non-alloy materials. Item Name: Twist Drill Bit Material: High Speed Steel Specification: 1mm/1.5mm/2mm/2.5mm/3mm/3.5mm/4mm/4.5mm/5mm/5.5mm/6mm/6.5mm/7mm/7.5mm/8mm/8.5mm/9mm/9.5mm/10mm/10.5mm/11mm/11.5mm/12mm/12.5mm/13mm Size Details: 19cm x 11cm x 6cm/7.48" x 4.33" x 2.36" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Set of Metric Twist Drill Bits (25Pcs)