Hi Nessa1, having a similar situation to yours.
Certainly contact the Probate helpline as themas has said.
Unless it has been stated in the will that your husband inherits the tools then there isn't much you can do.
I understood that if the estate was over £5000 then she will need to apply for probate. If this is the case then you could do what I had to do as my stepmum has not come forward with a copy of my fathers will (I know I am mentioned) I have sent a cheque for £6.00 along with a form (PA1S) to the probate office in York in order for them to do a standing search. What this means is that when probate has been granted they will send out a copy of the will along with the grant of representation to me.
Here is the link.
http://www.justice.go...standing-searches.htm
If you wish to pursue her if she hasn't applied, and she should have, then I would say you would need a solicitors help.
Not a nice situation at all. Hope this helps you.