Hi chaps,
The connectors are out of a Kress SDS drill's removable power cable.
A few years ago, while in the process of hacking off render, my drill stopped working suddenly with no warning. Being in the middle of a job I had no time to diagnose the fault, and immediately went out and bought a replacement. Yesterday I happened to come across the old drill in the attic and thought I'd take a look.
Remembering a recent comment by Mr. Sunnybob, the first thing I tried was manipulating the power cable close to the drill's strain relief while holding the trigger, and hey presto, the drill worked. The cable was broken internally.
Being a Kress drill, it has a removable power cable similar to Festool's system, which means it's not as straight forward to repair as a regular tool.
Link to picture of drill
http://gamateh.com/userfiles/productthumbs/thumb_6852.jpg
When I have time later I'll measure the connectors and compare them to the ones on the Rapid website.
Thanks all,
Mark