Tear-free cut, the rubber lip presses the material directly against the cutting edge, thus minimizing material tear-out. Since the splinter guard is notched during the first use, it reflects the exact cutting edge, allowing for precise alignment at the starting point. The replacement splinter guard is self-adhesive and can be easily trimmed. The splinter guard prevents edge tear-out even with angled cuts, and with its help, the guide rail can be precisely aligned at the starting point. To ensure this over time, it must be replaced regularly.