The 9pc Precision Boring Bar Set is a must-have for machinists and metalworkers who demand accuracy and durability in their tools. This high-quality set features precision-ground shanks and carbide tips, making it ideal for flat-bottom boring and precision machining tasks. Built with high-quality alloy steel, the boring bars provide superior rigidity and stability during cutting. With three lengths for each mini bore size, this set offers versatility and convenience for a wide range of applications. Key Features Precision Ground Shanks: Ensures accurate alignment and superior performance. Carbide Tips: The carbide tips are ground square with the shank, allowing for flat-bottom boring with exceptional precision. Offset Taper Design: Provides greater rigidity and stability at the cutting point for smoother, more accurate cuts. Three Lengths for Each Bore Size: Offers flexibility and adaptability for different machining requirements. High-Quality Alloy Steel Construction: Delivers excellent strength and durability, ensuring the set withstands heavy use. Versatile Applications: Suitable for boring, machining, and fine-tuning a variety of materials. Specifications Material: High-quality alloy steel with carbide tips Shank Size: 3/8" Number of Pieces: 9 precision boring bars Weight: 0.400 kg (lightweight yet sturdy for precision work) Design: Carbide tip ground square for flat-bottom boring; offset taper for added rigidity Comes With 9 precision boring bars in three different lengths for various mini bore sizes