This cased kit is ideal to being able to explore many pathologies found on oral exam, without having to own the weight of 10 stainless steel handles. The main 2 tips to keep on the handles will be the periodontal and pulp explorer probes, but there are other types and spares available too. 
Stainless steel - 2 handles, 10 screw on head tips including periodontal probe, pulp explorer, & scalers.