Material: Long drill bits made of high-quality high-speed steel. Excellent hardness, heat resistance, and durability. Dimensions and packaging: You will receive 2 extra-long drill bits of 5 × 200 mm. Long drill bits: The twist drill bit is 200 mm long. These drill bits are sharp and durable, allowing you to quickly and easily drill deep holes in various types of wood and plastic. Extra-long drill bits. Easy to use: The drill bits feature a straight shank, which is more convenient to use. The milling groove features a deep spiral, allowing for fast chip evacuation and a clean cut. Widely Used: The long drill bits can be used for drilling holes in wood, aluminum, plastic, rubber, and other materials. Compatible with most electric drills, they are an ideal choice for professionals and DIY enthusiasts.