Top Button: Self-retracting action returns the blade safely into the body when not in use Side Button: 3-position for blade locking and 1-position fully closed Please follow the steps for changing the blades (Please be informed that blades are changed when the blade is in the 1st position). Press the button on the blade Release the blade Change the blades Accepts all standard utility blades The blade retracts once it leaves the cutting surface when the blade is in the 4th position. Top Button: Self-retracting action returns the blade safely into the body when not in use Side Button: 3-position for blade locking and 1-position fully closed Please follow the steps for changing the blades (Please be informed that blades are changed when the blade is in the 1st position). Press the button on the blade Release the blade Change the blades Accepts all standard utility blades The blade retracts once it leaves the cutting surface when the blade is in the 4th position.
