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