This vintage Pittsburgh masonry drill set includes sizes 3/16, 1/4, 5/16, 3/8, and 1/2". The set is perfect for woodworking or carpentry projects. The brand is Pittsburgh and the set is a vintage original. The drill set is in good working condition and has been previously used. It is a great addition to any collection or for everyday use. Please review all photos and contact me with any questions before purchasing.