I am all ‘shook up’ today as I drilled for hours on end. Just as I was nearing the end however the drill stopped turning. It is an Erbaur and not very old. Maddening! Perhaps I should avoid buying the cheapest tool on offer. I have ordered a new one as it is still under warrantee and have changed make to Hitachi. Let us hope it is a better tool. I am looking forward to pulling this elliptical piece of marble out of the middle of the block. I shall have to prop it up from underneath before cutting away the last pieces of marble. Then somehow poke some rope through to lift it with.