Increase productivity and reduce costs by upgrading to the NEVERDullTM BladesThese high-performance blades stay sharper longer than traditional ones Pop one in the PRO-StrikeTM punchdown tool and no termination job will be too tough Advanced MIMS construction Metal Injection Molding ensures higher performance and longevity Works with all industry standard 110 and 66 style cross connect blocks keystone jacks Compatible with all industry standard bayonet mount twist lock punchdown tools Conveniently stores in your punchdown tool handle