Thermaltronics M8CH250H Chisel Extra Large 5.0mm (0.20"), Power Plus Temperature: 800 Series For Use With: TMT-9000S-1, TMT-9000S-2, MX-500, MX-5000, MX-5200 Tip Style: Chisel Tip Width: 0.20" (5.00mm) Tip Length: 0.55" (14.00mm)