Tacwise 13 series staples 6mm Tacwise have manufactured 6mm 13 series staples, that can be used for a wide range of applications. Tacwise are considered the market leaders in tacking, staples, and other accessories, and their 6mm staples have a unique feature whereby the staples twist as they enter the material, which provides a more secure and long lasting fixing. This product is a box of 5000 Tacwise 6mm staples.