This is a Genuine OEM replacement part used on a variety of Power Tools. It allows to keep the Carrying Case closed. This part is made out of Plastic and it is Sold Individually. Included in part number 901023
It is a genuine manufacturer-sourced component which is specially made for use with Porter Cable plate joiners. This is an identical replacement for a missing or a worn blade that was included with a new unit. Please make sure to refer to the owners manual and the appropriate diagrams of your model for the correct location and application...Read more of this hardware. Keep in mind this high-quality item is made of durable metal and is sold individually. Note, this 2" blade is for the "FF" biscuit operations. The #5558 Joiner Blade (6 Tooth, 4 Inch) is sold separately.