Over the years I've not come across a concrete bulnose until today. I have never been taught how to do this so I am looking for advise on how to proceed. Got to have a go at it tomorrow so can anyone help. I think that I should get my needle and thread out plus some f3 am I going in the right direction with this. I will post a pic tomorrow so members can tell me were I went wrong or right what ever the case may be thanks.