Hi I have made 3 new chisels with the carbide tips one with square tool bar cut at 45deg for sheer scraping with a round tip two with round tool bars one with a round tip and one with a square tip I did have the screws or so I thought cut a 4mm thread in two of them and a 6mm thread in the other one but the screws wont fit so I'm waiting to take delivery on them each tool cost me about £13 and it only took a few hours to make all 3 of them by hand with a hacksaw and a file and turned the handles any way here they are