“Tools intended for use within the EPA [ESD protected area] shall, as far as is practicable, be so constructed that they do not generate or hold an electrostatic charge ….
All tools and machinery, for example electrical, mechanical or pneumatic, shall be so constructed that any non‑insulating part of the tool or machine which may touch an ESDS [ESD sensitive items] shall be at EPA ground potential.” [EN 61340-5-1 clause 5.2.10 Tools, machinery, dispensers and test equipment]