belupai Diameter Extra Long 350mm HSS Auger Twist Drill Bit Straight Shank 6mm

Material: Made of high-speed steel, it is durable and wear-resistant, HSS(High Speed Steel) enables the drill body harder and can keep a longer drilling life. 8 Sizes: 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 14mm, 16mm, length 350mm, longer than the standard drill bit, you can freely choose the appropriate drill bit. Twist Drill Bits: The double flute chip removal design can speed up the process of drilling and chip removal, and is suitable for most types of hand drills and impact drills. Strong Practicability: Drilling or hole making is the most common metal processing operation in the world. Fried dough twist bit is the most commonly used bit type. Wide Application: The straight shank design of this assortment spiral drill is more suitable for many electric drills and drilling machines. Perfect for wood, aluminum, plastic drilling usage.