Multiple tool for a punching device, in particular for a turret punch press, comprising a) a driving mechanism, which can be displaced in a punching direction, the driving mechanism having i) a driving head for driving the driving mechanism by means of the punching device, and ii) a driving body connected to the driving head, b) a punching tool magazine, which is connected to the driving mechanism, the punching tool magazine having i) a guide body, and ii) a plurality of punching tools guided in the guide body, - wherein the punching tools in each case have an effective punching length for punching a workpiece to be machined, and - wherein the driving body, during punching use, in each case cooperates with one of the punching tools to drive it, and c) a mechanical punching length testing mechanism to test the effective punching length of the punching tools, i) wherein the punching length testing mechanism has at least one test spring element, ii) wherein a displacement of the punching tool to be tested in the punching direction to test this punching tool leads to an actuation of the test spring element and the test spring element in the actuated state exerts a restoring force on the punching tool to be tested, characterized in that <the test spring element can be manually actuated by finger pressure and has a spring rate which is between 0,1 N/mm and 5 N/mm. a) a driving mechanism, which can be displaced in a punching direction, the driving mechanism having i) a driving head for driving the driving mechanism by means of the punching device, and ii) a driving body connected to the driving head, i) a driving head for driving the driving mechanism by means of the punching device, and ii) a driving body connected to the driving head, b) a punching tool magazine, which is connected to the driving mechanism, the punching tool magazine having i) a guide body, and ii) a plurality of punching tools guided in the guide body, - wherein the punching tools in each case have an effective punching length for punching a workpiece to be machined, and - wherein the driving body, during punching use, in each case cooperates with one of the punching tools to drive it, and i) a guide body, and ii) a plurality of punching tools guided in the guide body, - wherein the punching tools in each case have an effective punching length for punching a workpiece to be machined, and - wherein the driving body, during punching use, in each case cooperates with one of the punching tools to drive it, and - wherein the punching tools in each case have an effective punching length for punching a workpiece to be machined, and - wherein the driving body, during punching use, in each case cooperates with one of the punching tools to drive it, and c) a mechanical punching length testing mechanism to test the effective punching length of the punching tools, i) wherein the punching length testing mechanism has at least one test spring element, ii) wherein a displacement of the punching tool to be tested in the punching direction to test this punching tool leads to an actuation of the test spring element and the test spring element in the actuated state exerts a restoring force on the punching tool to be tested, i) wherein the punching length testing mechanism has at least one test spring element, ii) wherein a displacement of the punching tool to be tested in the punching direction to test this punching tool leads to an actuation of the test spring element and the test spring element in the actuated state exerts a restoring force on the punching tool to be tested,