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 medium mechanical strength, non ferrous metals and thermoplastics (up to 600 Nm² tensile strength). It is possible with this tool to produce through threads up to a maximum threaded depth of 1 x D. They are especially usefull for mounting an dsmall batch production. Take care that the tool and the axis of the hole are exactly aligned and use a suitable cutting oil.
The following technical data apply for using battery-powered screwdriver and electric hand drills:


M 3

M 4

M 5

M 6

M 8

M 10

Core hole dia.

2,5 mm

3,3 mm

4,2 mm

5,0 mm

6,8 mm

8,5 mm

max. RPM

1600 RPM

1200 RPM

950 RPM

800 RPM

600 RPM

450 RPM