Trend CraftPro Intumescent Strip Cutter cuts the perfect sized slot into door edges and door frames for fast, perfectly flush fitting of intumescent strip. A bearing guide ensures the correct depth and width is always achieved to meet Fire Regulations. PTFE coating to minimise heat and resin build-up, for increased cutter performance and longevity. All Trend router cutters also have a safety & lsquoK&rsquo mark insertion indicator on each shank to ensure a quick and easy set up, whether for handheld or table work. Trend C220 x 1/4 TCT Intumescent Cutter to suit 4mm thick strip of 15mm width. Specification Diameter 24mm Cutting Depth 15mm Bearing 16mm Shank 1/4in