Material and Design: Constructed from a , unspecified material and coated with titanium for enhanced durability and performance. The hexagonal handle design ensures a firm grip and precise drilling. Versatile Use: Ideal for a variety of woodworking projects, this core drill bit is specifically designed to handle wood drilling tasks with ease, making it a must-have for DIY enthusiasts. Model Number: 3-13mm : Woodworking Features: 3-13mm has 11 steps in total, that is to say, it can process 11 sizes of holes on the thin plate, and it is more and stable than twist drill. The quick changing hexagonal handle can be used for electric tools such as screwdrivers. Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We the style is the same as shown in the picture. Color: Gold Material: Titanium Plating Package Contents: 2* hexagonal rotating heads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.