Knives With Replaceable Blades

60 YOM WAS USING A UTILITY KNIFE AND CUTTING ALONG A METAL GUIDE WHEN THE KNIFE SLIPPED AND SLICED INTO THE THUMB BED. DX: LEFT THUMB LACERATION

42YOM C/O LACERATION TO HIS LEFT THUMB JUST PRIOR TO ARRIVAL. PT WAS USING A BOX CUTTER. DX: FINGER LACERATION

74 YOM CUT HAND WITH A BOX CUTTER DX: LAC

23 YOF WAS USING A ROTARY CUTTER AND ACCIDENTALLY CUT HER FINGER. DX: FINGER LACERATION

13YOM WAS CARVING WOOD WHEN HE WAS DISTRACTED AND HIS KNIFE SLIPPED AND HE CUT HIS LEFT INDEX FINGER DX: LEFT INDEX FINGER LACERATION

66YOF PATIENT WAS USING A BOX CUTTER WHEN SHE SLICED HER FINGER DX: LACERATION OF LEFT MIDDLE FINGER WITHOUT FOREIGN BODY WITHOUT DAMAGE TO NAIL

28YOM CUT HIS FINGER USING A BOX CUTTER DX: LACERATION OF LEFT INDEX FINGER WITHOUT FOREIGN WITH DAMAGE TO NAIL

58YOF PATIENT REPORTS CUTTING HER LEFT HAND WITH *** KNIFE WHILE TRYING TO OPEN A PLASTIC CANDYCANE DX: LACERATION OF LEFT HAND WITHOUT FOREIGN BODY

62YOF WAA USING A ROTARY CUTTER AND CUT LEFT INDEX FINGER DX:LAC FINGER

19YOF WAS ATTEMPTING TO CUT A PLASTIC BOTTLE WITH A BOX CUTTER, SUS LAC TO THUMB, DX LAC TO THUMB

37 YOF CUT LEFT INDEX FINGER ON A BOX CUTTER, DX; FINGER LACERATION

40 YOM IS RENOVATING A HOUSE. HE WAS USING A BOX CUTTER TO CUT DRYWALL WHEN THE KNIFE SLIPPED CUTTING HIS LEFT THUMB AND 2ND/3RD FINGERS. DX FINGER LACERATIONS

On September 12, 2025, I sustained a 3/8 cut on my finger while using the Masterforce Quick Change Folding Carpet Knife (Model MF90823, SKU 2375567), purchased from the Menards Evergreen Park, IL store on September 1, 2025. The injury occurred when I reached into my pocket and the exposed blade of the folded knife cut me. Unlike other utility knives I own, this model does not have a guard that fully covers the blade when folded, despite being advertised as having a Safety lock-back system. The exposed blade creates a serious hazard for anyone carrying or handling the knife. The cut was painful, required healing time, and has prevented me from safely carrying or using the knife since the incident. I previously reported this to Menards on September 15 and received only a brief acknowledgment. Despite a follow-up on September 17, I have not received further communication.

Cut finger during change of the razor blade: The design of the scrapper was that changing the razor blade required first sliding of the scrapper cover out of a tab, then removal of the cover so that the worn blade can be replaced with a new one. The cover could be re-installed by re-engaging the tab after installation. In the process of change the blade, I sustained a cut in my finger about 1.5 cm long and 1.5 mm deep. I was told that size cut normally would have required at least 2 stitches. Luckily the cut had smooth edges and seemed to close with little gap, and the emergency staff was able to send me home with a medical tape over the wound. The accident was caused after the new blade had been installed, the cover had to be secured by re-engagement of the tab lock. During the re-engagement, the cover had to be pushed which coincidentally expose the blade. If a finger or body part was anywhere in front of the blade, there would be an accident for sure. Someone else had reported this problem a few years ago (required 7 stitches). I am surprised this design has not been updated and there is not even a serious safety warning sticker to alert of the danger. I am an extremely safety conscious person. I have safely used many powered tools that are potentially more dangerous than this. But this design is inherently dangerous. Worst is that it seems so deceptively harmless. I urge the manufacture to do something now, either change the design, make it impossible to change the blade, or at a minimum put out a RED warning label.

This razor blade scraper consists of 2 pieces of plastic which slide with respect to each other. One piece of plastic is mounted a razor blade (the blade piece), the other piece acts as a protector (the protect piece). In the "open" position, the protect piece moves behind the blade piece, thereby exposing the blade. In the "close" position, the protect piece goes in front of the blade piece, presumably offering protection from being cut by the blade. Except it does not work because there is no locking of the pieces in position either closed or opened position. So if the blade is closed and you pushes the scraper toward a part of your body, you the protector will retreat and the blade will be exposed to cause a cut. This design is careless and extremely dangerous. My wife was cut at least 2 times just picking the scraper up. I have also reported a more serious accident with this device in No. 20160919-208F0-2147413945

While cutting a light duty cable tie with my Kobalt Speed Release Folding Utility Knife (sharp) a pin holding a necessary component failed causing the blade to fall out of the knife which almost hit me in the head.

On July 19, 2021 I placed an order online at modernmint.com for an arts & crafts specialty cutting tool. When it arrived on August 5, 2021 I tried to use it and found that it did not work as advertised online. When I tried to change the cutting blade, I almost cut off the tip of a finger. It came with no instructions and no safety warnings. I hate to think what would happen if a child got a hold of this tool.

Blade installation of this product places one at risk for deep cuts to the hand. The warnings are generic and instructing the use of gloves in the instructions will not prevent cuts as new sharp blades are being installed and will cut thru leather gloves easily. The difficulty in removing worn blades and installing new sharp blades adds to the inherent danger of this product. Only by using vice grips or steel woven gloves can blades be safely replaced. I was not injured but I do recognize the risks.

I used box cutter to open a box, then, when I tried to retract the blade, the mechanism broke and the blade shot out the rear end, cutting my finger. I have strong, steady hands (no arthritis, weakness, nor tremor). This could have happened to anyone. Product should be removed from the market. I bought a few of these box cutters several months ago at Harbor Freight Hard Ware in San Rafael, CA. They were sold individually without identifying info. They are light orange plastic, about 5" long and 1/2" wide. I would be happy to send the broken one as well as an intact one to you.

I was trying to open the Fiskars Contour Rotary Cutter to cut fabric at my home. Upon attempting to open the packaging the Fiskars Contour Rotary Cutter blade came through the left side of the plastic packaging and at that point cut off the pad of my dominant right thumb. There is not a protective cover over the entire blade to ensure safety while opening this tool. The cutter remains inside the packaging as it was not fully removed during the initial incident. The incident happened so quickly that I felt the pain then looked down to see profuse amounts of blood. The pad of my thumb was half inside the packaging and half outside the packaging when my husband found it. He placed the skin back onto my thumb and we went to the hospital. After an 8 hour wait and excruciating pain, the ER doctor re-attached the pad with 8 stitches on half of the injury but was unable to place stitches on the other side of the pad due to the severity of the injury. I am deeply concerned that this accident could happen again to another innocent person trying to cut fabric at home. This product did not have a protective cover over the blade or a warning for how to open it safely.