JT21 staples are the T50's little brother. Although often referred to as light duty, thereâ€™s really nothing â€œlightâ€ about them. Built with the same quality and precision as the T50, these staples utilize a thinner wire in a smaller staple format to deliver great holding power. They are exceptionally easy to fire, making JT21 staples a favorite with crafters, women and those with limited grip strength. Used for general Housewares repairs, crafting, art projects and upholstery.