5PCS Extra Long Twist Drill Bit Set, 150mm High Speed Steel Wood Bits, 2MM 3MM 3.5MM 4MM 5MM Hardness Spiral Straight Shank Set for Drilling Tool Plastic Hard Metal

Variety of Sizes: This set includes five different sizes: 2mm, 3mm, 3.5mm, 4mm, and 5mm, providing versatility for various drilling needs. Each bit is 150mm long, ideal for drilling deep holes. High-Quality Material: Made from high-speed steel (HSS), these drill bits are exceptionally sturdy and durable, offering higher wear resistance and a longer service life compared to other drill bits. Extra-Long Design: With a length of 150mm, these extra-long twist drill bits are designed to drill deep holes efficiently, speeding up the drilling and chip removal process. Ease of Use: The drill bits feature a double groove chip removal design, making drilling faster and less effortful. The twisted design ensures smooth drilling and effective chip removal. Wide Application: Suitable for drilling wood, plastic, rubber, and steel plate, these drill bits are versatile and perfect for various drilling tasks, compatible with many electric drills.