Drilling bit--it has a wide range of uses and is suitable for electric hand drills, drilling machines, milling machines, and factory machining centers,drill bit for metal
Straight shanks drill bit--it is made of high-speed steel material, which is sturdy and , and has a ,drill bit steel
Long drill bit--the product has fine workmanship and excellent texture, which can provide fast and accurate drilling to efficiency,drill bit long
Long steel drill bits--fast and accurate, low cutting resistance, and practical,useful drilling bit
Twisting drill bit--fine workmanship, excellent work performance, fast execution and maintaining strength and efficiency,drill bit