Precision Engineer’s Frame Level Designed for high-accuracy leveling applications, this precision frame level is ideal for setting and checking the alignment of machinery, equipment, frames, pipes, round bars, and structural components in industrial and workshop environments, this high-accuracy frame level ensures reliable measurements on both flat and curved surfaces.Precision engineers square frame spirit level for setting and checking the level of machinery and other high accuracy levelling applications. The body of the level is made from cast iron and is precision ground for accuracy. The bottom face is prismatic ground in the centre providing accurate seating on flat surfaces, shafts and round bars. Key Features: ✔ High-Accuracy Measurement – Features graduated bubble vials and an auxiliary cross level for precise leveling in horizontal and vertical orientations.✔ Durable Cast Iron Body – Provides stability and resists deflection, ensuring long-term accuracy even in rugged conditions.✔ Precision-Ground Surfaces – Ensures consistent and reliable contact points for accurate readings.✔ V-Shape Base Design – 100mm Model: Single V-shape face on the base for secure seating on round surfaces like pipes and bars. 150mm & 300mm Models: Dual adjacent V-shape faces for enhanced stability on round frames, ensuring versatility across different applications. ✔ Complete Set – Includes a protective storage case and an adjusting spanner for calibration and maintenance. Specifications: SKU Length Width Height Sensitivity per Division 070-121-00100 100mm 100mm 32mm 0.02mm/m (=0.0011° or 4 arc seconds) 070-121-00150 150mm 150mm 40mm 070-121-00300 300mm 300mm 44mm