RADR is a multipurpose portable power drill that can be used for drilling on variety of surfaces including pipes, corrugated and curved sheets, and flat surfaces. A small formal modification allows it to clamp, and a simple retractable mechanism gives ease of use with precision drilling on any type of surface.

RADR has an add-on shell with a V-shaped structure at its front, which helps to clamp pipes tangentially. In this position, the vertex of the V-edges is always aligned vertically to the centre of the pipe. This guides the tool to drill perpendicularly to the centre, hence producing a precise, straight drill hole.

The same principle applies on other curved or angled surfaces. The form of the shell itself plays an important role in the functionality. When the clamp shell is back in the normal position, it acts like a normal power drill and can be used accordingly.

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