Features 100% Brand New and High Quality This set of durable 13 piece titanium nitride coated drill bits lasts six times longer than standard drill bits. High Speed Steel drill bits with heat-resistant titanium plating for a longer life and durability Fitted with 1/4" hex shank and provides easy quick change outs. It fits cordless screwdrivers, drills etc or use in standard drill chuck Drill point tip increases cutting speed by self-centering to prevent walking. Threaded chip flutes remove chips and particles faster! Ideal for drilling wood, plastic, aluminium, etc. Using for DIY, general building/engineering, home repairs and light job Specifications: Surface treatment: Titanium plating Material: high speed steel Color: silver+golden size:as the picture Uses: It can be used for drilling thin plates such as wood, plastic, aluminum, and iron. Package included: 1x 1.5mm HSS Drilling Bit 1x 2.0mm HSS Drilling Bit 1x 2.5mm HSS Drilling Bit 1x 3.0mm HSS Drilling Bit 1x 3.2mm HSS Drilling Bit 1x 3.5mm HSS Drilling Bit 1x 4.0mm HSS Drilling Bit 1x 4.5mm HSS Drilling Bit 1x 4.8mm HSS Drilling Bit 1x 5.0mm HSS Drilling Bit 1x 5.5mm HSS Drilling Bit 1x 6.0mm HSS Drilling Bit 1x 6.5mm HSS Drilling Bit