The choice of materials (Zenex thermoplastic and nylon shackle) is stated by the manufacturer as resistant to chemicals

Non-Volatile Residue (g/sq-m): Deionized Water 0

please refer to the manufacturer's data sheet:

Manufacturer: BUSSMANN (Eaton Bussmann)

Ringnøgle 36mm/41mm Unit(s):Pcs The choice of materials (ZenexProduct Overview This deep offset double ring spanner from BAHCO, Bahco 2M 36 41, is a mechanical hand tool solution designed as a deep offset double ring spanner with ring sizes of 36 mm and 41 mm. The Bahco 2M 36 41 has an overall length of 438 mm and a stated weight of 1170 g. Design and Materials 12 point Dynamic Drive profile for reduced wear on nuts and bolts. Surface: chrome plated with micro matte finish. Material: high performance alloy