General description Pack of 13 professional drill bits ranging from 1.5mm to 6.5mm, designed for drilling into wood, metal, and plastic. These high-speed steel drill bits feature a titanium coating for enhanced heat resistance and durability, ensuring a long service life. Technical specifications Sizes: 1.5mm, 2mm, 2.5mm, 3.2mm, 3.5mm, 4mm (5/32"), 4.5mm (11/64"), 4.8mm (3/16"), 5mm (13/64"), 5.5mm (7/32"), 6mm (15/64"), 6.5mm (1/64"), 6.5mm (1/32") Hex shank size: 6.35mm Material: High-speed steel with titanium coating Cutting angle: 135° Compatibility and accessories Suitable for electric screwdrivers, drills, and standard drill chucks Installation Fitted with a 6.35mm hex shank for quick and easy changeover Usage Designed for smooth drilling with minimal pressure required Threaded chip flutes effectively remove splinters and debris Other information Worry-free after-sales service provided