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

Material: The long drill bits is made of high-quality HSS (high-speed steel). Compared with other drill bits, it is sturdy and durable, has higher wear resistance and firmness, and has a long service life. 5 Sizes Drill Bitss: drill bits include 5 different sizes of drill bits. The diameter is 2mm 3mm 3.5mm 4mm 5mm drill bit. The length of the drill bit is about 15 cm. You are free to choose the right drill bit. Extra-long Brill Bits: The length of the twist drill is 150mm. These drill bits are sharp and durable and can drill deep holes. You use these drills to drill deep holes, which can speed up the drilling and chip removal process. Simple Operation: Our long wood drill bit has a chip removal design, and the twisted drill makes drilling easier and easier. The extra-long cutting edge allows these drills to drill deep holes. Application: The drill bits has use for drilling wood, wood, rubber, plastic, steel plate. It is widely used for drilling many electric drills, automobile spring steel and die steel.