The daily risk of injuries by mounting and especially dismounting of blades is not avoidable with standard blade holders. With the new SCHWERT SAFE-EX an innovation was developed that changes the daily routine eminently. The integration function that works like a regular ball pen reduces the risk of an injury to a minimum. The blade is ejected from the SAFE-EX just by pushing the button on the distal end. The practice staff, especially during the re-processing, is safe from infections caused by unintended cuts.