This CRL UltraWiz® UltraOne Cold Knife is the perfect choice to accompany UltraWiz® Blades. It features scratch resistant comfortable foam grips, and a single screw quick blade change feature. The single screw also allows for easy adjustment to the blade length for all applications. Order Cat. No. AN3005RK for Replacement Pull Handle. This knife comes with one Cat. No. AN1001 Standard Cut-Out Blade.