66 Turn-Lock Punchdown Blade
The 35-497 66 Turn-Lock Punchdown Blade is 66 blade with one end for seating and cutting, and other end for seating only (no-cut) for use with 66 style IDC posts in telecommunication/phone/voice applications. That blade can be stored in the Punchmaster II spare blade chamber and turn-Lock design secures blade inside of the tool.