Need to machine a small sphere on the end of this plain shank,after I’ve cut the thread off,I’ve ground a l/h & r/h radius tools and will have to remove 0.110” overall,the current diameter is 0.440”,I’m used to delicate/feel type turning,but just not by gripping on a spherical surface,btw light toffee hammer blows doesn’t dislodge it. Thanks.