I've no idea what this is?, hahaha, but it looks decent ..... :-)

looks great!

Well duuur; "Enables a ½" x 20mm female threaded chuck to be fitted to an SDS drill. Not to be used on hammer action."

Obviously! ;-)

can theese be turned into light sabres or something?

Light Sabres would be amazing but I think it just fits into the end of your sds drill and allows you to screw on a regular chuck onto the end so you can use your standard drill bits rather than the sds ones. I could be wrong though!

Bob has it bang on. If you don't understand it, then you don't need one ;-)

Ordinary drill bits are round and will not fit in an sds drill which holds square shaped bits.

If you own an sds drill ,this device will enable you to fit a standard chuck to your sds drill so you can use the more common round drill bits. I bought one when they were a pound ,, ( that price for the last couple of months), so 70p, will be store specific last of the stock.

what a bargain

what a bargain

And thrice...what a bargain.
For those still wandering what it may be and there still maybe some, its a ... thingymabob.There I've said it.

anyone found use for it? mine is still sealed

Got no idea what it is but heat! Not buying one by the way.