Material: High quality close-grained cast iron, stress-relieved. Accuracy: Machining to 0.05mm / 100mm

Two V blocks per set Made of hardened tool steel

Model special cast iron 90° grooves machined in pairs

90o V-way. High carbon steel hardened to 50o-54o HRC, precision ground to within 0.005mm accuracy in squareness. Angle tolerance ± 10 minutes....

Angle Can Be Adjusted From 0o~60o By Screw

Hardened, high accuracy, strong magnetic force, for grinding, light milling, drilling and inspection of round and square jobs All working surfaces...

Two V-blocks per set Workpieces don't get damaged due to bearings Suitable for heavy workpieces.

Parallelism and squareness of A, B, C, D, E and F: 6um Parallelism and squareness of V groove to A, B, C, D, E and F: 6um.