Feature:* Hardness and Sharp: Our drill bit has a double-ended straight shank, its hardness and sharpness, ideal for drilling very thick wood. And special for stainless steel.* Double Bit: drills twice as many holes as a single drill tip.* Robust Construction: Drill with extremely robust design, especially suitable for drilling thin materials.* Scope of Application: This HSS twist drill bit is used in portable tools, mainly in body panel shops, auto repair shops. Specifications:Product Name: Double Head Auger Material: HSSColor: GoldOptioanl Size: 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.2mm, 4.5mm, 5.0mm, 5.2mm, 6.0mm Suitable for: Drilling Wood, Stainless Steel, Thin Materials. Quantity: 10pcs/setPackage Contents:10 × Double Head AugerNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.