Knipex 90 29 02 KN | Spare Blades For 90 25 20Knipex 90 29 02 KN Spare Blades For 90 25 20 The Pipe Cutter Spare Blade is an essential accessory for maintaining the performance of your pipe cutter. Made from high quality, durable materials, this blade ensures clean, precise cuts on a variety of pipe materials, including plastic, copper, and steel. Easy to install and long lasting, it's the perfect replacement to keep your tool working like new.