1、Specification and Use: Tapered countersink drill bit set, with 2.5x6MM specificatio, suitable for convenient drilling of soft wood and hard wood material, which is efficient and practical. 2、Carbide Material: This countersink drill bit is made of excellent carbide material, which has high hardness, wear resistance, impact resistance, no deformation, and a long service life. 3、High Work Efficiency: This tapered countersink drill bit has incisive cutting and convenient operation, avoiding cracks and splashing, and greatly improving woodworking efficiency. 4、Multiple Functions: This countersink drill bit is a multifunctional design that is suitable for punching, sinking, and drilling holes, suitable for home and professional woodworking projects. 5、Other Accessories: This kit includes a tapered drill and a hex wrench for easy installation and use. Equipped with a plastic box for storing bit, providing good guard and easy carrying.