TRACER Pro 5.2mm Heavy-Duty Soapstone Leads are purpose-built replacement leads for professionals working in metal fabrication and welding environments. This replacement lead pack includes six 5.2mm diameter silver leads, specifically designed for use with the TRACER TOUGH Construction Pencil and comes stored in a robust dispenser storage case. Formulated for arc welding, resistance welding, solid-state welding, and other types of welding, including MIG, TIG, Stick, and Flux Core Arc Welding. Suitable for most metal surfaces such as stainless steel, steel, aluminium, magnesium, copper, slate, iron, titanium, these soapstone leads produce clean, highly visible lines that are easy to control and even easier to clean. Unlike traditional leads, TRACER soapstone doesn't stain welds-so you can mark, cut, and weld with full confidence and no residue. TRACER Pro Soapstone Leads may also be used for tiling and general construction. These long-lasting leads deliver sharp, accurate markings without damaging your surface. They're also wipeable when needed, giving you flexibility and control without compromise. Designed for professionals who demand clarity, durability, and reliability on every mark, TRACER soapstone leads perform where others can't.