Punch Down Tool, High Impact Design Assures Good Quality Terminations, Inserts & Cuts Cable In Termination Blocks, Impact Adjustment With High/Low Setting Accommodates Multiple Applications, Extra Blade Can Be Stored In Handle, Spring Loaded, Includes Hook & Spudger To Help Installation, 110 Style Blade Used In Cat 3 & Cat 5 Terminations, Cut & Non-Cut, 66 Style Blade Used To Terminate Phone Wiring, Cut & Non-Cut.