CARBON STEEL MATERIAL: Made of carbon steel, this drill bit set features high durability and heat resistance, making it an ideal choice for long-term use, your choice without concern for woodworking. HEXAGONAL SHANKS DESIGN: Designed with hexagonal shanks, these bits can be easily connected with your electric drills and chisels with excellent stability, making your drilling process smoother . 8 AVAILABLE SIZES: You can choose from 8 different diameters: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm. These diameters are precision machined and suitable for all your drilling demands. CARRYING CASE INCLUDES: Our package comes with a wooden storage box for easy transport and convenient storage, you will never you no longer have to worry about losing any of the drill bits or taking them outside. SERVICE: We sincerely hope that you have a good shopping experience in our store, if you have any questions, please feel free to contact us. Product Description Set of 8 Carbon Steel Woodworking Drill Bits with Precision Machined Hex Shank Wood Case High Quality in Wood Case Heavy duty carbon steel Precise worked for precision Hexagonal shank For use with drills and gimlets Material: carbon steel Duration: approx. 23cm / 9.06inch Diameter: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm Wood box dimensions: approx. 25.5 x 18.5 x 4cm / 10 x 7.2 x 1.6inch Weight: ca. 1354G