Features 1、Made of high quality high carbon steel, good cutting performance, durable and wear resistant. 2、The cork drill is processed by CNC, with accurate dimension, ensuring product performance. 3、This suit has a variety of specifications to choose from to meet a variety of different work scenarios. 4、It has a wide range of uses and can be used for woodworking to drill fixed tenons. 5、Easy to use, can be used for bench drills, electric hand drills, and can be used for household purposes. Specification Item Type: Cork Drill Bit Material: High Carbon Steel Specifications: Approx. 6mm / 0.2in, 10mm / 0.4in, 13mm / 0.5in, 16mm / 0.6in Shank Diameter: Approx. 9.5mm/ 0.4in Purpose: Used for Woodworking to Drill Fixed Tenon Applicable Scenarios: Bench Drills, Hand Drills Package List 8 x Cork Drill Bit