All Kiwi Crimp Sleeves are gritted for superior wire gripping over typical non-gritted. This crimping sleeve is used to secure 8 ga smooth wire or 12 ½ ga Barbed Wire at terminations and splicing. When crimping sleeve, a crimping tool is required ( Crimp Tools ), using the slot marked 4-5. When crimped properly the sleeve will have a cylindrical shape. A properly crimped sleeve will provide full breaking strength of the wire. Review Image & Manual for guidance. Made in the USA.