1-1/4 inches square x 1-5/8 inches long.
And all sides are perfectly square with each other. V Block and Clamp, Matched, 2PK Precision Ground V Blocks Hold Round Stock SecurelyV blocks are the best way to hold round tubing or bar stock for milling, cutting, grinding, drilling or filing. Ours are made of fine quality hardened tool steel, precision milled and polished on all 6 sides.