The Sealey 150mm Spring Calipers Internal provide precision measurement capability for smaller bore diameters and internal distances. This compact 150mm size is ideal for general workshop applications where space is limited or when measuring smaller components, making it an essential tool for engineers and mechanics working with standard-sized parts. Designed for measuring distances between two points, such as bore diameters, these calipers allow accurate transfer of measurements to a rule or micrometer for precise reading. The adjusting washer and nut mechanism enables fast and positive adjustment, ensuring you can work efficiently whilst maintaining accuracy. The brushed metal finish provides both durability and a professional appearance that will withstand the demands of daily workshop use. Features and Benefits:150mm capacity perfect for general workshop measurementsAdjusting washer and nut for quick, positive adjustmentBrushed metal finish for long-lasting durabilityTr