RUKO HSS Flat Counter Sinker with Fixed Guide for Thread Core Hole, DIN 373, Tin Finish, 8.0 mm Diameter, 71.0 Length, R102416T

Ruko Din 373 Hss-tin M4 Flat Countersink. Achieve unparalleled precision and a flawless finish in your metalworking projects with the RUKO DIN 373 HSS-TiN M4 Flat Countersink. Engineered for professional demands, this high-performance countersink is an essential accessory for any workshop focused on quality and durability. It is enhanced with a state-of-the-art Titanium Nitride (TiN) coating, an advanced surface treatment that significantly increases hardness and provides exceptional wear resistance. This allows for higher cutting speeds and drastically extends the tool´s operational life compared to uncoated alternatives, delivering a more efficient, cost-effective, and reliable cutting experience, even in the most challenging materials.Specifically designed according to DIN 373 standards, this tool features a precise 180º countersink angle. This perfectly flat-bottom design is essential for creating impeccable recesses for both hexagonal and cylindrical head screws, including socket head cap screws. It ensures that screw heads sit perfectly flush with or below the workpiece surface, resulting in a clean, professional, and snag-free assembly that is critical for both aesthetic and functional applications.The tool´s geometry is expertly optimized for superior performance. It boasts three sharp cutting edges that engage the material smoothly and effectively. This three-flute design ensures a stable, chatter-free operation and promotes excellent chip evacuation, which is vital for achieving a superior surface finish within the bore and reducing thermal load. Operating with a standard right-hand cut, it integrates seamlessly into conventional machining processes.This M4 flat countersink is an indispensable tool for the critical step of preparing holes prior to threading. It is used to create the necessary counterbore for the M4 screw head before the tapping process begins, guaranteeing a complete and accurate fit for the fastener. Its versatility is a key asset, it is highly recommended for a wide range of materials, performing with exceptional reliability in tough metals like steel and cast iron, as well as in light metals and various non-ferrous metals.Ease of use is ensured by the robust cylindrical shank, which allows for secure clamping and excellent concentricity in all standard drill chucks. This makes the countersink universally compatible with benchtop drill presses and handheld electric drills. For protection and workshop organization, each tool is supplied in a durable, translucent plastic case, complete with an integrated hanger for easy storage on pegboards and quick identification in a busy environment. Choose the RUKO DIN 373 HSS-TiN M4 for consistent, high-quality results where precision cannot be compromised. tradeinn Bricoinn

Shank Diameter : 8.0 mm Cutting direction: Right hand cut Cutting edges: 3 Countersink angle: 180 degree Shank: Cylindrical