40-Position Quick Change Tool Posts & Holders 6"-13". You are purchasing a 40-Position Quick Change Tool Posts & Holders 6"-13". Easy and accurate to adjust height. Reground tools without removal from holder setting. Adjust tool to 40 positions. 6-13 (150-300mm) lathe swing range. Including 1 Tool post, 3 D holders and 1 B holder. Fully interchangeable with most 40-Position tool post A, E and B. Make sure your address is deliverable from post office. Remember 2-3 day service does not count Sunday or holidays. It is not a guaranteed service but has been proved to be highly ...