9Pcs Boring Bar Set, 12mm F1 Type High Speed Steel CNC Lathe Boring Bar with Storage Base for Metalworking and Precision Machining

Item Type: Boring BarQuantity: 9PcsMaterial: High speed steelBase Size: Approx. 72 x 55 x 30mm / 2.8 x 2.2 x 1.2inBase diameter Height Drilling depth Smallest hole 12mm / 1/2in 57.1mm / 2.2in 19mm / 0.7in 7.9mm / 0.3in 12mm / 1/2in 66.6mm / 2.6in 28.5mm / 1.1in 7.9mm / 0.3in 12mm / 1/2in 76.2mm / 3in 38.1mm / 1.5in 7.9mm / 0.3in 12mm / 1/2in 66.6mm / 2.6in 28.5mm / 1.1in 11.1mm / 0.4in 12mm / 1/2in 80.9mm / 3.2in 42.8mm / 1.7in 11.1mm / 0.4in 12mm / 1/2in 95.2mm / 3.7in 57.15mm / 2.3in 11.1mm / 0.4in 12mm / 1/2in 76.2mm / 3in 38.1mm / 1.5in 13mm / 0.5in 12mm / 1/2in 95.2mm / 3.7in 57.1mm / 2.2in 13mm / 0.5in 12mm / 1/2in 114.3mm / 4.5in 76.2mm / 3in 13mm / 0.5in Package List：9 x Boring Bar

• Precision High-Speed Steel Construction: This 9Pcs boring bar set is made of high-speed steel, offering excellent heat resistance and retention for consistent performance during extended metalworking sessions on your CNC lathe.
• Versatile Length and Hole Size Options: The boring bar set includes nine tools with varying drilling depths from 19mm to 76.2mm and smallest hole diameters of 7.9mm, 11.1mm, and 13mm, enabling precise internal machining for diverse projects.
• Ideal for Machinists and Hobbyists: Whether you're a professional machinist or a DIY enthusiast working on engine blocks, plumbing fittings, or custom parts, this boring bar delivers accurate internal diameter adjustments on lathes and milling machines.
• Durable and Reusable Design: Each boring bar features a solid 12mm shank for secure toolholding and reliable torque transfer, while the hardened steel body ensures long service life even under heavy-duty cutting conditions.
• Convenient Storage and Portability: The set comes with a compact storage base measuring 72 x 55 x 30mm, keeping all nine boring bars organized, protected from damage, and ready for quick access in your workshop or job site.