Thermaltronics M7SB276 Bent Sharp 30deg 0.5mm (0.02") interchangeable for Metcal STTC-144 Temperature: 700 Series For Use With: TMT-9000S-1, TMT-9000S-2, MX-500, MX-5000, MX-5200 Tip Style: Bent Sharp 30deg Tip Width: 0.02" (0.50mm) Tip Length: 0.55" (14.00mm)