Retail 19 Piece HSS Drill Bit Set 1Mm-10Mm Quality German Tools Twist drill bits are made from high speed steel for high hardness and durability. The surface of drill bit is coated with titanium that gives it a beautiful color. There are 19 pieces drill bit in different sizes of the most popular drill bits. They are great for most drilling jobs and materials such as aluminum, wood, plastics. Sharp twisted drill bits will make the drilling easier and more effortless. Color: GoldMaterial: High speed steelSurface Finishing: Titanium platingType: Twist drill bitDiameter of Head (mm): 1/1.5/2/2.5/3/3.5/4/4.5/5/5.5/6/6.5/7/7.5/8/8.5/9/9.5/10Diameter of Shank (mm): 1/1.5/2/2.5/3/3.5/4/4.5/5/5.5/6/6.5/7/7.5/8/8.5/9/9.5/10Length of Blade (mm): 10/15/20/30/30/40/40/50/50/55/55/60/60/70/75/75/80/80/80Total Length (mm): 35/45/45/55/55/70/70/80/85/90/90/100/100/110/115/115/125/125/130Quantity: Total 19 pcs Package Includes: 19* HSS - Cobalt Alloy Drill Bit Set 1mm-10mmOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.