CTA Tools 18200 11-Piece Thread Cleaning Assortment Features a Plastic Organizer Designed with Protective Compartments Includes 1 of Each Millimeter Tap Sizes: 12x1.25, 12x1.75, 14x1.50, 12x1.50, 14x1.25, 16x1.50, 18x1.50, 22x1.50 Includes 1 of Each Inch Tap Size: 1/2x20 CTA Tools Part Numbers 9660 and 9665 Tap Holders Included Meets the Exacting Quality Standards of CTA Tools