Drills for deep (up to 25 diameters) drilling holes 02.0 ... 3.0 mm; drills - carbide countersinks for machining precise holes; drills 016 ... 63 mm with internal coolant supply, equipped with SMP; single-blade reamers 012 ... 60 mm with interchangeable carbide cutting plates for machining holes in the block and cylinder head of engines. Various types of tools have been developed and are offered, which ensure the manufacture of threads in accordance with the requirements of GOST, ISO, ANSI, DIN