100% Brand New & High Quality OOTDTY Feature: Made of HSS Quenched Heat Treatment, Very Durable to Use. They can provide a perfect cut every time, suitable for high drill bit. The high-quality HSS drill bit has reliable performance and durability when drilling holes on plastics, aluminum, copper, stainless steel, and many other types of materials. There are 7 different sizes and it comes with a hard wooden case for packing, safely deposited and easy to take. Suitable for carpenter, builder, electrician, workshop, DIY, home crafts, amateurs, stylists, etc. Specially designed for professionals, it also fits into a DIY tool kit. Specifications:Material: HSS,6542For details sizes as follows:M3:63mmM4:72mmM5:82mmM6:86mmM8:91mmM10:105mmM12: 107mmColor: as pictures shownQuantity: 1 PcNote:No retail package. Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 x Drill Bit (Other Accessories Demo in the Picture Are Not Included)