To change the blade you will simply need to unscrew the center screw!
This will then allow access to the full blade and blade storage as shown in the users manual below the image of the item.
With the power, hand and cutting tools and tool sets featured at On Time Supplies, you can quickly and safely tackle any maintenance job. We also offer a nice selections of tool boxes, including tool boxes with wheels, as well as ladders and step ladders, screwdriver sets, drill bit sets and other essential tool sets, tools and tool accessories. Take advantage of our bulk order discounts and GSA pricing to stock up on tool sets, tool chests and more. If you need more information on the hand and power tools, knife sets, tool storage boxes and ladders featured at On Time Supplies, or on other janitorial and maintenance supplies, call us toll free at 1-866-501-6055. We're happy to answer any supply questions.