This set of durable 5 Piece Titanium Coated Drill Bits with 1/4" Hex Shanks will last up to 6 times longer than standard drill bits. Suitable for use with steel, wood, plastic etc. they are a great addition to any toolbox. The Titanium Nitride coating facilitates faster penetration with less effort. The 1/4" hex shank is designed for use with cordless screwdrivers, enabling you to quickly change drill bits. Titanium coated HSS drill set with standard 1/4" hex shank that will fit cordless screwdrivers, drills etc. or use in standard drill chuck. Product Features: 118° Angle Point Two cutting edges with a drill point Drills with a chisel action High Speed Steel Higher resistance to heat Ideal for drilling a wider range of materials Ideal for Drilling Metal Also suitable for wood and plastic 1/4" Hex Shank Compatible with a wide range of drills and cordless screwdrivers Sizes 1.5mm, 2.0mm, 2.5mm, 3.2mm and 4.8mm.