Description: 99 Pieces HSS Ti- BitsHss Drill Bit Set For Wood, Plastic And AluminumGreat For DIY, Home And General Building/Engineering UsingHome or DIY useMade from High Quality Ti-Coated HSSLong life tool setMaterial : Ti-CoatedFeatures:1. The HSS drill bits are for cutting through hard metal, like aluminum alloy, and tialloy2. Accuracy grinding inclined blade helps ensure fast drilling, impressive cutting power, and excellent chip removal3. This product can drill through metal easily with help from this highspeed steel drill bit set. Ideal for professionals and DIYers alike, the drill bit set comes in handy for a variety of projects, whether at home or on the job.4. Each drill bit in the set features highspeed steel construction with a ti- surface coating for high hardness, longlasting strength, and supreme cutting power.5. Drill through metal easily with help from this highspeed steel drill bit set. The drill bits make a great choice when working with aluminum alloy, ti alloy, and other high hardness materialsContaining Sizes:1.5mm To 10mmContents:16pcs x 1.5mm Drill Bit16pcs x 2mm Drill Bit15pcs x 2.5mm Drill Bit10pcs x 3mm Drill Bit10pcs x 3.2mm Drill Bit8pcs x 3.5mm Drill Bit8pcs x 4mm Drill Bit3pcs x 4.5mm Drill Bit3pcs x 5mm Drill Bit2pcs x 5.5mm Drill Bit2pcs x 6mm Drill Bit2pcs x 6.5mm Drill Bit2pcs x 8mm Drill Bit2pcs x 10mm Drill BitPackage Includes:1 x 99pcs of Drill Bits.