Seco 14 oz (397 g) Plumb Bob The Seco 14 oz Plumb Bob is a precision-machined tool designed for accurate vertical alignment in surveying and construction applications. Manufactured from solid brass, it provides reliable balance and consistent performance for layout, plumbing, and control point transfer. Key Features • Solid brass construction for durability and stable vertical alignment • Precision-machined for consistent accuracy in field applications • Includes hardened steel point for sharp, repeatable positioning • Internal storage cavity for spare point • 14 oz (397 g) weight ideal for light-duty and general-purpose use