The Deltach DI-734900 is a comprehensive 16-piece machine tap and drill set, engineered from high-speed steel (HSS) for superior durability and precision. This set includes 7 machine taps for common metric thread sizes (M3, M4, M5, M6, M8, M10, M12) and 7 corresponding HSS core drills (Ø2.5, Ø3.3, Ø4.2, Ø5.0, Ø6.8, Ø8.5, Ø10.2 mm). Additionally, it features a tap holder and a drill holder, all neatly organized in a sturdy storage case. This professional-grade set is ideal for creating accurate internal threads in various materials, ensuring efficient and reliable performance for workshop and industrial applications.