M3-M10 Combined threading and drill-bit set of 7 pcs

VÖLKEL-Combined-Bits have been designed for drilling, tapping and deburring in one operation using battery-powered screwdriver drills and electric hand drills with right-hand and left-hand rotation, but they are also suitable for thread cutting in a stationary drilling machine. The Combined Bit is suitable for universal use in materials of mediumechanical strength, non ferrous metals and thermoplastics. The tool can produce through threads up to a maximuthreaded depth of 1 x D. They are especially useful for assembly work and small batch production.