Featuring Senco's Neverlube oil-free design， the tool never needs to be lubricated， eliminating stains to the work surface. Senco's 1-3/8 inches 23-gauge pin nailer allows you to fasten intricate millwork， casing and other pieces of trim without splitting or requiring any touch up work. This headless pinner drives 1/2 inches to 1-3/8 inches pins into dense hardwoods commonly used in various moldings.