Second what Oldstreetbob stated regarding press, caliper and scales. I bought a Rockchucker in 1970. I resized some 308 cases over the weekend that measured less than 1% TIR using Mighty Armory die. I would add good quality dies are required along with a straight press for maximum concentricity. I have had good results with Forster dies also. In lieu of kit tools, I recommend just about any made by Sinclair, Wilson or Forster. Good luck with your new hobby, although difficult, try to stay out of the rabbit holes.