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A deformed or skew-seated nail. This happens not only to a professional. The Concavus hammer deals with his intelligent functionality exactly with this problem. The special accuracy is reached by the radial-concave form of the blow surface of the hammer head. At an angled strike the nail is enclosed by the concave form of the application and offers an almost orthogonal contact area so that the nail does not break out or deform.
Because of the optimised shock function the hammer is suited in particular for persons with a handicap or impaired motor activity.