Foredom Tips For Hammer Handpieces

I don't have anything to compare to this set . They seem to be good quality.

Bought the standard anvil tip and the rectangular tip, both had a dimple right in the middle of the metal's hammer surface. I read that these Foredom tips are made with the steel unhardened so that the user can shape them at will. First thing I did was refinish the surface: used a needle file to work the tip flat then used my set of dedeco silicone wheels. Ended up polishing the surface of both tips to a bright mirror-polish. Nice, but requires some initial effort prior to use... Not bad for the price.