Hss Drill Bit Set For Wood, Plastic And AluminumProfessional grade drill bits are titanium coated for long life and durabilityAll drill bits come complete with the 6.35mm hex shanks to insert into your drillIt fits cordless screwdrivers, drills, etc. or for use in a standard chuck Ideal for workshop, DIY, toolbox, home crafts, hobbyists, modellers or for commercial use, such as carpenters, builders and electriciansHss Drill Bit Set For Le Wood, Plastic And Aluminum. The titanium nitride coating facilitates faster penetration with less effort. 6.35mm hex shank is specially designed for cordless screwdrivers, allowing you to change bits quickly. titanium coated with standard 1/4" hex shank that fits cordless screwdrivers, drill bits etc. or used in standard chucks 1/4" hex shank for quick bit changes Ideal for DIY, home and construction general/engineering.Size:1.5mm/0.06"2.0mm/0.08"2.5mm/0.10"3.0mm/0.12"3.2 mm/0.13"3.5mm/0.14"4.0mm/0.16"4.5mm/0.18"4.8mm/0.19"5.0mm/0, 20"5.5mm/0.22"6.0mm/0.24"6.5mm/0.26" Specifications: Material: HSS/High Speed Steel Surface Treatment: Titanium Coated Shank Size: 6.35mm hex rods Diaphragm details: 1.5-6.5mm twist bit Function: Used on iron plate, aluminum, wood and plastic etc.Note:1. This drill bit set can't drill very thick metal plate Contents: 1x Set (13pcs) HSS Helical Drill Bit Note: The data are all manual measurement, please allow 1-3cm error, Due to the light and display difference, there will be some color difference, depending on the physical item received.