Best Price Square COUNTERBORE, HSS, M3 102408 By RUKO

Ruko Din 373 180º Hss Medium Grade M3 Flat Countersink. RUKO DIN 373 180º HSS Medium Grade M3 Flat CountersinkAchieve a superior, professional finish in your metalworking projects with the RUKO DIN 373 HSS M3 Flat Countersink. Engineered for precision and durability, this high-performance accessory is an essential tool for creating perfectly flat-bottomed recesses for screw heads. Ideal for machinists, fabricators, and serious DIY enthusiasts, this countersink delivers clean, accurate results every time, elevating the quality and appearance of your finished work.Designed to meet the rigorous DIN 373 standard, this tool is expertly crafted for creating counterbores in through holes. Its specific design is optimized for the medium pitch associated with M3 screws, ensuring a flawless fit and function. The perfectly flat 180º countersink angle is specifically engineered to create a precise, flat-bottomed recess, making it the ideal choice for preparing holes for hexagon head screws, socket cap screws, and other cylindrical head fasteners. This allows the screw head to sit perfectly flush with or just below the surface of your workpiece for a clean, snag-free, and professional assembly.At the heart of its exceptional performance are three precision-ground cutting edges. This 3-flute design ensures a smooth, stable, and chatter-free countersinking action, reducing vibration and producing a superior surface finish without burrs. The tool operates with a standard right-hand cut, ensuring compatibility with all common drilling equipment and a predictable, efficient cutting process.Showcasing remarkable versatility, this High-Speed Steel (HSS) countersink is highly recommended for a wide spectrum of materials. Effortlessly work with general construction steel, tough and abrasive cast iron, and a variety of light and non-ferrous metals. Whether you are working on machine parts, custom fabrications, or repair jobs, this countersink provides the strength and sharpness needed to perform consistently across different applications.Usability and compatibility are key. Featuring a universal cylindrical shank, the RUKO flat countersink can be securely mounted in the standard three-jaw chucks of pillar drills, drill presses, and handheld power drills, offering broad utility in any workshop. For your convenience and to protect the tool´s precision-ground edges, it is supplied in a robust, translucent plastic case. This protective case features an integrated hanger, allowing for easy and organized storage on a tool wall or in a drawer, ensuring your tool is always safe and ready for the next job. tradeinn Bricoinn

To produce cuts for cylinder head bolts, hex bolts and nuts. Great for burr-and chatter-less sinks in steel, cast iron, non-ferrous and light metals. Great results at low cutting speed.