Splinters

Buy a tin of fullers earth it ready milled bentonite clay I have in my head that the mix is 1 part fullers to three parts silver sand then temper it with oil I am just looking into casting my self so am by no means an expert and am at work at the moment so dont have my notes I am just sharing what I have picked up asking about so far.

Hi I dont know what a cole drill is but a cobolt Drill bit should bore through just about anything as long as its done slowly and cutting lubricant is used one of the water based emulsions are best,you say there is a lot of tourch guogeing evident so may be you are worrying about the temper a bit to much as its already been knocked about. good luck and let us know how you get on

Fantastic work well done kind regards Splinters