Abstract: A utility knife includes a housing having a compartment for receiving one or more spare knife blades, a blade carrier slidably received in the housing for supporting and moving a knife blade into and out of the housing, and a pushing device for selectively pushing and feeding one of the spare knife blades into the blade carrier without opening or detaching the housing. A pusher is slidably received in the housing and has an edge for engaging with and for moving the spare knife blade to the blade carrier, and a spring element may move the pusher relative to the housing and to offset the pusher from the spare knife blade. A hand grip may be used to move the pusher relative to the housing.

Abstract: A utility knife includes a housing having a compartment for receiving one or more spare knife blades, a blade carrier slidably received in the housing for supporting and moving a knife blade into and out of the housing, and a pushing device for selectively pushing and feeding one of the spare knife blades into the blade carrier without opening or detaching the housing. A pusher is slidably received in the housing and has an edge for engaging with and for moving the spare knife blade to the blade carrier, and a spring element may move the pusher relative to the housing and to offset the pusher from the spare knife blade. A hand grip may be used to move the pusher relative to the housing.

Abstract: A blade dispenser includes one or more blades slidably received in a housing and biased by a coil spring to one end of the housing which has a slot for removing one of the blades from of the housing. A cylindrical space is formed in the housing and has an inner diameter greater than a distance between the front and the rear panels of the housing for stably receiving the coil spring in the housing, and for preventing the coil spring from being moved relative to the housing. A bracket may be engaged between the blade and the coil spring.

Abstract: A hacksaw includes a frame having a chamber formed in a rear handle, an arm pivotally secured to the handle for tensioning a saw blade and having a rear oblong hole, a lever pivotally secured to the handle, and a tension rod pivotally secured to the lever and having a lower portion extended through the oblong hole of the arm. A latch has a block slidably received in the handle and has an orifice for slidably receiving the tension rod. A spring may bias the latch to engage with the lever, and may bias the arm away from the handle.

Abstract: A hacksaw includes a frame having a chamber formed in a rear handle, an arm pivotally secured to the handle for tensioning a saw blade and having a rear oblong hole, a lever pivotally secured to the handle, and a tension rod pivotally secured to the lever and having a lower portion extended through the oblong hole of the arm. A latch has a block slidably received in the handle and has an orifice for slidably receiving the tension rod. A spring may bias the latch to engage with the lever, and may bias the arm away from the handle.

Abstract: A hacksaw includes a saw blade detachably secured between a frame and a handle. An arm is rotatably secured to the lower portion of the handle, a lever is rotatably secured to the upper portion of the handle, and a rod received in the handle coupled between the lever and the arm. The lever is depressible to engage with the handle and to force the arm to engage with the handle, and to tension the saw blade between the frame and the handle. A lock device is slidably the handle and movable toward and away from the lever for selectively securing the lever to the handle.

Abstract: A utility knife includes a pair of housing members having a front portion detachably secured together with a catch engagement. One housing member has a latch portion disposed in the rear portion, and a knob is slidably engaged through the other housing member and has a latch engaged with the latch portion for securing the rear portions of the housing members together. A spring may bias the latch of the knob to engage with the latch portion. The other housing has one or more swellings for securing the knob to the other housing member at the required position.

Abstract: A utility knife includes a knife holder slidably received in the front portion of two casings. The front portions of the casings are hooked together. A knob is pivotally coupled to one of the casings and includes one end biased to engage with the other casing. A spring is engaged between the rear portions of the casings for biasing the rear portions of the casings away from each other when the knob is disengaged from the other casing and for allowing the casings to be easily separated from each other by the user.

Abstract: A hacksaw includes a frame and a handle. A lever is pivotally coupled to the handle. A link has a rear end pivotally secured to the bottom portion of the lever. A blade is secured between the link and the frame and is secured in place when the lever is rotated to engage with the handle and is released when the lever is disengaged from the handle. A latch may secure the lever to the handle when the lever secures the blade in place. A bolt is threadedly engaged with the lever and the link for moving the link relative to the lever and for adjusting the blade tension when the lever secures the blade in place.