Micropin Brad Nail 23-gauge. Straight stick, galvanized brad nails. Ideal for cabinet doors, small trim, glazing bead, carvings and ornamentals, picture frames, birdhouses, and other small trim jobs. Micropins fasten the smallest trim and leave virtually no hole. For use in Senco FinishPro 10 nailers and all other 23-gauge straight micropin nailers.No. A100509: 1/2 IN, 2600 per pack No. A100629: 5/8 IN, 2600 per pack No. A100759: 3/4 IN, 2600 per pack No. A101009: 1 IN, 2600 per pack No. A109809: Multipack, contains 600 each of 1/2 IN, 5/8 IN, 3/4 IN, and 1 INYour are ordering Part # A100509