Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si [HSS TITANIUM COATING] These small drill bits feature classic HSS construction for reinforced durability. The-premium titanium coating offers superior resistance to-abrasion and corrosion. [AUTOMATIC CHIP REMOVAL] These small drill bits feature 2 flutes design helps clear and debris , decreasing friction and heat for a faster, cooler drilling process. [ALL-PURPOSE BITS SET] Suitable for soft metal, wood, PVC (not applicable to wall). It is your perfect Titanium Drill Bit Set for DIY projects and household maintenance and repair. [40 PCS COMBO SET] 40 pcs jobber length titanium drill bits in 4 sizes from 3/64inch to 1/8inch(10pcs X 0.6mm, 10pcs X 1.0mm, 10pcs X 1.5mm, 10pcs X 2.0mm, 40 pieces ) to have your different needs covered and increase overall productivity. [Multi-purpose ] Workshop or Service Vehicles. Drills and clean holes in thinner, low hardness of wood and soft metal hole processing, repairs and light jobs. Colour:silver Material:High speed steel + stainless steel + alloy steel Package Contents: 1 set x metric drill bit Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.