ST - COSHH essentials for stonemasons: Silica Files in this series: ST0 - Advice for managers ST1 - Primary and secondary sawing ST2 - Rotary tools: Boring and polishing ST3 - Hand-held rotary tools: Cutting and polishing ST4 - Hand and pneumatic chiselling ST5 - Sawing slate ST6 - Slate splitting (Manual) ST7 - Dressing slate (edge bevelling) See also HSE Books Research reports Operational guidance Other languages