Thermaltronics M7CH175H Chisel 30deg 2.5mm (0.10"), Power Plus Temperature: 700 Series For Use With: TMT-9000S-1, TMT-9000S-2, MX-500, MX-5000, MX-5200 Tip Style: Chisel 30deg Tip Width: 0.10" (2.50mm) Tip Length: 0.41" (10.30mm)