Hello, I apologize in advance if this is in the wrong topic. The question is as in the description, I have such a knife and I have no idea how to recreate it to replace the blade. I assume it's not possible, but I'd rather ask.

You remove the black tip of the handle and slide out the blade.

I just can't remove the tip, do you have any ideas on how to do it?

There should be a latch on the black tip. You need to try to press/pry. Are all the blades broken off and you want to replace them? These strips on the blade are where they break off.

As far as I can see, there is no latch. I just want to know if it can be removed and replaced.

We will become extinct like mammoths

There is a latch and you either remove the black tip or, if not, you fold it away. All these knives have 100% replaceable blades

Gently pry in the marked place: If it is also on the other side, you pry both latches at the same time.

You will have a latch to pry out, but various patents for this solution have been used.

I just found it hard to believe that anyone could make such a pain in the ass system to open it. there were 3 latches

Replacing the blade in a wallpaper cutter - step by step instructions

Pawel13741 28815 12

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#1 20127954 03 Aug 2022 13:21

Pawel13741 Pawel13741

Level 20

» | Topic author

Post #1
20127954 03 Aug 2022 13:21

Hello, I apologize in advance if this is in the wrong topic.
The question is as in the description, I have such a knife and I have no idea how to recreate it to replace the blade. I assume it's not possible, but I'd rather ask.
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#2 20127957 03 Aug 2022 13:24

Anonymous Anonymous

Level 1

» |

Post #2
20127957 03 Aug 2022 13:24

You remove the black tip of the handle and slide out the blade.
#3 20127961 03 Aug 2022 13:25

Pawel13741 Pawel13741

Level 20

» | Topic author Helpful post? (+2)

Post #3
20127961 03 Aug 2022 13:25

I just can't remove the tip, do you have any ideas on how to do it?
#4 20127971 03 Aug 2022 13:29

sanfran sanfran

Network and Internet specialist

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Post #4
20127971 03 Aug 2022 13:29

There should be a latch on the black tip. You need to try to press/pry.
Are all the blades broken off and you want to replace them?
These strips on the blade are where they break off.
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#5 20127974 03 Aug 2022 13:34

Pawel13741 Pawel13741

Level 20

» | Topic author Helpful post? (0)

Post #5
20127974 03 Aug 2022 13:34

As far as I can see, there is no latch.
I just want to know if it can be removed and replaced.
#6 20127979 03 Aug 2022 13:37

badboy84 badboy84

Level 43

» | Positive voted Helpful post? (+15)

Post #6
20127979 03 Aug 2022 13:37

We will become extinct like mammoths
#7 20127982 03 Aug 2022 13:38

MarcinM2020 MarcinM2020

Level 22

» | Helpful post? (+1)

Post #7
20127982 03 Aug 2022 13:38

There is a latch and you either remove the black tip or, if not, you fold it away. All these knives have 100% replaceable blades
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#8 20127984 03 Aug 2022 13:39

ta_tar ta_tar

Level 41

» | Helpful post? (+2)

Post #8
20127984 03 Aug 2022 13:39

Gently pry in the marked place: If it is also on the other side, you pry both latches at the same time.
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#9 20128000 03 Aug 2022 13:45

MarcinM2020 MarcinM2020

Level 22

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Post #9
20128000 03 Aug 2022 13:45

You will have a latch to pry out, but various patents for this solution have been used.

https://youtu.be/edUZf0uhjyI
#10 20128003 03 Aug 2022 13:48

Pawel13741 Pawel13741

Level 20

» | Topic author Helpful post? (0)

Post #10
20128003 03 Aug 2022 13:48

badboy84 wrote:
We will become extinct like mammoths

I just found it hard to believe that anyone could make such a pain in the ass system to open it. there were 3 latches
#11 20128016 03 Aug 2022 13:55

ta_tar ta_tar

Level 41

» | Helpful post? (+1)

Post #11
20128016 03 Aug 2022 13:55

Pawel13741 wrote:
I just found it hard to believe that anyone could make such a pain in the ass system to open it.
Would you like the back part to pop out every time you put the blade into the handle?
#12 20128018 03 Aug 2022 13:57

MarcinM2020 MarcinM2020

Level 22

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Post #12
20128018 03 Aug 2022 13:57

badboy84 wrote:
We will become extinct like mammoths

😂😂😂
#13 20128032 03 Aug 2022 14:03

kaz69 kaz69

Level 37

» | Helpful post? (+2)

Post #13
20128032 03 Aug 2022 14:03

Sometimes the black, removable tip had a notch for safely breaking the blade.
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Topic summary

✨ The discussion revolves around the process of replacing the blade in a wallpaper cutter. Users provide step-by-step instructions, indicating that the black tip of the handle must be removed or pried open to access the blade. Some users mention the presence of latches that secure the tip, which may require simultaneous prying to release. There is a consensus that the blades are replaceable, although the mechanism can be complex, with some users expressing frustration over the design. Additional insights include the possibility of a notch for safely breaking the blade and the existence of various patents for blade replacement mechanisms.

FAQ

TL;DR: Most snap-off wallpaper cutters open via a tail‑cap latch; "All these knives have 100% replaceable blades." Remove or fold away the black tip to change blades. [Elektroda, MarcinM2020, post #20127982]

Why it matters: This helps DIYers and pros replace blades fast without damaging the knife or buying a new one.

Quick Facts

Change blades by removing the black tail cap, then sliding the blade out. [Elektroda, Anonymous, post #20127957]
Tail-cap mechanisms vary: pry-out latches and fold-away designs exist; examine yours before forcing it. [Elektroda, MarcinM2020, post #20128000]
Some handles use dual latches; release both sides at once to remove the cap. [Elektroda, ta_tar, post #20127984]
Many caps include a notch for safely snapping dull blade segments. [Elektroda, kaz69, post #20128032]
Typical snap-off blades: 9 mm ≈ 13 segments, 18 mm ≈ 8 segments, 25 mm ≈ 7 segments. ["OLFA Blade Sizes"]

How do I replace the blade in a wallpaper cutter (snap-off type)?

Retract the blade fully. 2. Remove the black tail cap. 3. Slide the blade out, insert a new one aligned in the channel, and reattach the cap. That’s the basic procedure on these knives. [Elektroda, Anonymous, post #20127957]

Where is the latch to open the handle?

Look on the black tail cap for a small latch or tab. Press or gently pry to release it. As one expert notes, "There should be a latch on the black tip." Work carefully to avoid marring the plastic. [Elektroda, sanfran, post #20127971]

The tip won’t come off—what should I try next?

Pry exactly where the latch sits, not the cosmetic edges. If your knife has latches on both sides, release both simultaneously. Keep the blade fully retracted before prying. Avoid twisting that can crack the cap. [Elektroda, ta_tar, post #20127984]

My knife had three latches—is that normal?

Yes. Some models use two or even three latch points. Release every latch before pulling the cap, then the blade will slide out. Extra latches reduce accidental opening during use. [Elektroda, Pawel13741, post #20128003]

Are these blades actually replaceable, or is my knife disposable?

They are replaceable. As a seasoned user put it, "All these knives have 100% replaceable blades." Remove or fold the tail cap to access and change the blade. Keep the slider retracted during the swap. [Elektroda, MarcinM2020, post #20127982]

What are the grooves on the blade for?

Those are snap lines. When the edge dulls, snap off the tip at the next line to expose a fresh edge. Don’t snap multiple segments at once. Replace the whole blade when segments run out. [Elektroda, sanfran, post #20127971]

How do I safely snap off a dull blade segment?

Use the notch in the removable tail cap to grip the segment and bend it away. Keep the remaining blade retracted. Dispose of snapped segments safely to prevent injury. Refit the cap before cutting again. [Elektroda, kaz69, post #20128032]

Which blade sizes and segment counts should I know?

Common snap-off standards are 9 mm with about 13 segments, 18 mm with about 8, and 25 mm with about 7. Choose the width that matches your handle and cutting load. Brands like OLFA popularized these sizes. ["OLFA Blade Sizes"]

The blade won’t slide out after removing the cap—why?

Verify the cap is fully off and the blade is fully retracted. The blade slides out from the rear channel once the cap is removed. If it still sticks, re-seat and try again gently. [Elektroda, Anonymous, post #20127957]

Do I need special tools to release the tail-cap latch?

No. A fingernail or small flat tool is enough. Pry gently exactly at the latch location to avoid damage. If two latches exist, release both before pulling. Avoid excessive force or twisting. [Elektroda, ta_tar, post #20127984]

Is it normal for the handle to feel very tight to open?

Yes. Tight latching prevents accidental opening while cutting. As one expert quipped, "Would you like the back part to pop out every time you put the blade into the handle?" Firm but careful pressure is expected. [Elektroda, ta_tar, post #20128016]

Are there different tail-cap designs I should expect?

Yes. Some caps lift off with a latch, others fold away on a hinge. Manufacturers use different latch "patents," so inspect the cap before prying. Look for tabs, hinges, or side latches. [Elektroda, MarcinM2020, post #20128000]