If you pin, as shown in the illustration, a conventional hammer with a thin layer of polyurethane or of thick rawhide, it becomes possible to use it during the Assembly of panel furniture, metal works – in short, where the damage to the surface is extremely undesirable.
Recommend to read
THE SECOND “HEART” ROUTE
Most often the chassis of modern highway car made of metal. In the case are tinplate, thin sheet duralumin and brass, steel wire. Requirements and the chassis is presented are many, and...
RC “TRAINER”
Simple, easily repaired, volatile, inexpensive... That's only part of the requirements for training RC model aircraft. These requirements are fully satisfied "Trainer-RC" — RC plane...