Staff Answer
Sep 14, 2026 - 12:24 PM
Viro specifies the Euromonolith 4153 body as one-piece, special case-hardened and tempered steel, but does not publish a specific steel alloy or grade. The lock also features a 13 mm case-hardened and tempered steel rotating dead-bolt and a 4.3 mm case-hardened, tempered steel anti-drill plate.
Viro does not publish a specific angle-grinder cut time for the 4153, including when using a diamond cutting disc. Cut time can vary considerably depending on the grinder, cutting wheel, access to the lock and other conditions, so we cannot provide an accurate or manufacturer-supported cut-time estimate.
