Abstract: An out of front knife with an assisted opening mechanism has a handle, a blade mounted in the handle, a thumb stud that drives the blade, and an extending assembly that assists with extending the blade out of the handle. With two sliders and two springs of the extending assembly, only when the blade is intentionally pushed to move a preset distance and overcome a preset resistance, one of the springs pulls and assists the blade of the out of front knife to extend out of the handle. Therefore, the out of front knife with the assisted opening mechanism is used safely.

Abstract: An out of front knife with an assisted opening mechanism has a handle, a blade mounted in the handle, a thumb stud that drives the blade, and an extending assembly that assists with extending the blade out of the handle. With two sliders and two springs of the extending assembly, only when the blade is intentionally pushed to move a preset distance and overcome a preset resistance, one of the springs pulls and assists the blade of the out of front knife to extend out of the handle. Therefore, the out of front knife with the assisted opening mechanism is used safely.

Abstract: A retractable knife with a multistage positioning function has a handle, a blade slidably mounted in the handle, and an operating assembly connected to the handle and the blade. The handle has a guiding panel with a guiding hole and multiple pairs of positioning recesses formed in an inner sidewall defined around the guiding hole. The operating assembly has a guiding rod with a positioning head selectively engaging between one of the pairs of the positioning recesses. The blade is capable of protruding out of the handle with a multistage function for the convenience of using the knife. Since a resilient element pushes the guiding rod to allow the positioning head to abut the guiding panel, the blade does not easily slide out of the handle, so the knife can be used safely.

Abstract: A multi-functional folding knife has a handle and a blade. The blade is rotatably connected to the handle and has a cutting segment, a screwdriver head, a rope recess, a peak segment and an engaging mouth. The cutting segment is formed on a bottom of the blade and has a straight edge and a saw-tooth edge. The screwdriver head is formed on and protrudes from a top of the blade and is slotted and flat in shape. The rope recess is obliquely formed in the top of the blade adjacent to the screwdriver head and has a severing edge. The peak segment is formed on and protrudes from the top of the blade near the middle and adjacent to the rope recess. The engaging mouth is formed downwardly in the top of the blade between the peak segment and a rear end of the blade and has an engaging hook.

Abstract: A retractable knife has a handle, an operating element, a blade assembly and a safety lock. The handle has a casing and a cover. The casing has a guiding channel and two sliding recesses. The cover is connected securely to the casing and has a guiding slot and two button-holes. The operating element is slidably mounted in the handle and has a guiding shaft and a pushing button. The blade assembly is connected to the handle and the operating element and has a blade and a mounting panel. The mounting panel is connected to the blade, is securely mounted in the handle and has a column slot and two pairs of positioning holes. The safety lock is slidably mounted on the handle between the cover and the mounting panel, is selectively locked with the operating element and has a front locking lever and a rear locking lever.

Abstract: A multi-functional folding knife has a handle and a blade. The blade is rotatably connected to the handle and has a cutting segment, a screwdriver head, a rope recess, a peak segment and an engaging mouth. The cutting segment is formed on a bottom of the blade and has a straight edge and a saw-tooth edge. The screwdriver head is formed on and protrudes from a top of the blade and is slotted and flat in shape. The rope recess is obliquely formed in the top of the blade adjacent to the screwdriver head and has a severing edge. The peak segment is formed on and protrudes from the top of the blade near the middle and adjacent to the rope recess. The engaging mouth is formed downwardly in the top of the blade between the peak segment and a rear end of the blade and has an engaging hook.