Fowler 12" Cylindrical Square 52-750-012-0 $355.55 Quantity discounts available QuantityPrice SKU: 527500120 Out of Stock This item is currently on back order and will be available shortly. Quantity -+ Add to Cart Details • Used for checking squares, height gages and other instruments• Hardened and the ends are lapped to 90° angular accuracy• 12" cylindrical squares: ±.... Details Back Details• Used for checking squares, height gages and other instruments• Hardened and the ends are lapped to 90° angular accuracy• 12" cylindrical squares: ±.00015"• Includes handles and wood case