Precision Metric 1-2-3 Block Set of two (25 × 50 × 75mm) Designed for precision, strength, and versatility, these hardened and precision-ground 1-2-3 blocks are an essential setup tool for machining and inspection work. Supplied as a matching pair and manufactured to a tight ±0.005mm tolerance, they deliver consistent, repeatable accuracy on every face. Featuring 5 M10 × 1.5 tapped holes and 18 clearance holes, the blocks can be securely bolted together or to fixtures, making them ideal for milling, drilling, grinding, and alignment tasks. The set is supplied in a neat, durable plastic storage case, keeping the blocks protected, organised, and ready for use in the workshop. This is a Hare & Forbes special-order item, available to order through Alltools Geelong (order code M260) for collection in store.