3M E-A-R UltraFit 27 Earplugs 340-8002, Corded Wiha Tools Pro Picks The external hex socket is

The external hex socket is loosened or tightened with the Zyklop socket

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Torque-indicator with pre-set and tamper-proof torque value

3M E-A-R UltraFit 27 Earplugs 340-8002, Corded Wiha Tools Pro Picks The external hex socket isGeneral Information Brand E A R Cord Type Vinyl Hearing Protection Style Corded Hearing Protection Type Eartips Insertion Style No Roll Product Series E A R UltraFit Product Type Earplugs Country Of Origin United States Sold As Carton Lead Time 2 days California Residents Proposition 65 Warning Dimensions and Specifications Earplug Size Regular Width 5. 24 in 13. 3 cm Height 9. 45 in 24 cm Length 8. 31 in 21. 1 cm Volume 411 cubic inch 6735. 12 cm3