Metcal SFP Soldering Cartridge Chisel 1.5mm (0.059") 30° SFP-CH15 vendor_GEARWRENCH 1 mA @ 100 kΩ

1 mA @ 100 kΩ

Tone Frequency Error Level per Tone Pair

and personal items like keys

What the ESD Association says about wrist straps:

Metcal SFP Soldering Cartridge Chisel 1.5mm (0.059") 30° SFP-CH15 vendor_GEARWRENCH 1 mA @ 100 kΩOverview SxP Solder Tip Cartridges are the standard soldering tip range for the Metcal MFR 1110, MFR 2210 and MFR 1351 series soldering systems. The second letter in the part number designates the temperature series. The SFP series are nominally 390 C. Metcal recommends the SFP series for the majority of applications. However, the family also offer a higher temperature series designated SCP, nominally 450 C, for high temperature and thermally