The KL 1208 is a if maintained. Without oil and clean air, it dies quickly. Because parts are becoming scarce, do not buy a broken one unless you have a donor unit. For the same weight class today, look at the Bosch BH2060 (current model), but the KL 1208’s 28mm hex tooling is still widely available from suppliers like Mighty Mole or TR Industrial.
For further historical documentation, the Bosch Classic Archive provides digitized manuals for workshop equipment manufactured up to the year 2000. Bosch kl 1208 battery charger manual bosch kl 1208 manual top
Even with the , owners encounter issues. Here is how the manual solves them: The KL 1208 is a if maintained