C&E Punch Down Tool with Impact Adjustment Includes 110/88 Blade (CNE43941) This Punch Down tool features impact adjustment It is designed for use with 66, 88 and 110 type blocks (66 Blocks will require purchasing 66 Type Block Punch Down Blade) This tool works with both keystones and patch panels Works with the following blades: 66 Type Block Punch Down Blade and CNE43934 includes 110/88 Blade