3M DBI-SALA 3100522 Nano-Lok Review (2026)
The 3M DBI-SALA 3100522 Nano-Lok is a self-retracting lifeline from 3M DBI-SALA, listed at $174.99, edge-rated for leading-edge applications (per the product listing). It's built for rebar, formwork, and structural crews whose anchorage is the steel itself rather than a dedicated overhead point…