Marshalltown - 15528 Brick Jointer 3/8 inch X 1/2 inch - 304379 Concave design and produced from high-carbon steel. Polished for ease of use Tempered for long lasting No. 15528: Number 1 End Size is 3/8 inch, Number 2 End Size is 1/2 inch, Package Quantity is 1 is 1 | The Jenks Industrial SKU is 304379