"Very good tool easy to use well worth the money"verified buyer, 02/22/2024
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Description
Dangerfield 'J-Tool' Reach-Through Door Thumbturn Opening ToolFree UK delivery over 30 Royal Mail options 30 day easy returns European delivery available Reach through J tool A J tool for authorised thumbturn reach through work The Dangerfield J Tool is a reach through door tool for suitable double door gaps and internal thumbturn operation. It is a locksmith tool for authorised non destructive entry where the door and lock layout allow the method. J toolshape Thumbturnroute Doorbypass 9. 99GBP 5 5 verified
Free UK delivery over £30
Royal Mail options
30-day easy returns
European delivery available
Reach-through J-tool
A J-tool for authorised thumbturn reach-through work
The Dangerfield J-Tool is a reach-through door tool for suitable double-door gaps and internal thumbturn operation. It is a locksmith tool for authorised non-destructive entry where the door and lock layout allow the method.
J-toolshape
Thumbturnroute
Doorbypass
9.99GBP
"The tool is well made"verified buyer, 11/14/2022
Why buy this
Buy this when the door gap gives access to the thumbturn
Some commercial double doors leave a narrow route to the internal thumbturn. A shaped reach-through tool lets a trained user operate the thumbturn without attacking the cylinder.
Reach-through method
Designed for suitable gaps between double doors.
Thumbturn focus
Targets the internal thumbturn rather than the keyway.
Non-destructive route
Useful when authorised access can be achieved without drilling or pulling.
Use route
How to assess the door first
Check the door gap, thumbturn position, and authorisation before using the tool. Work slowly so the tool does not scratch surfaces or bind in the gap.
- Confirm the gap and thumbturn layout.
- Work gently to avoid door damage.
- Use only for authorised entry work.
Helpful next step: bypass tools.
Product details
What to know before you choose
| Brand | Dangerfield |
| Product type | Reach-through J-tool |
| Method | Thumbturn operation |
| Door focus | Suitable double-door gaps |
| Best use | Authorised non-destructive entry |
Use lock picking and entry tools responsibly, only on locks you own or have permission to work on, and check local laws before buying.
Questions
Quick answers
Is it for every door?
Only where the layout suits it. The gap and thumbturn layout must be suitable.
Does it pick the lock?
It leaves the keyway alone. It operates the thumbturn where access is possible.
Who should use it?
Trained users handling authorised door entry.
What should I protect?
Avoid scratching doors, frames, or hardware while working.
Add a non-destructive thumbturn route
For the right door layout, a J-tool can avoid unnecessary cylinder attack.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Moisturizing
Easy to apply, does not feel greasy. Used on legs after shaving. Did not clog pores. Legs felt smooth and moisturized
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Reviewed in the United States on May 4, 2026
★★★★★ 4
Got a rash from it
Color: Green, Size: 2 Fl Oz (Pack of 1)
I'm in that percentage of women who have chin hair, unfortunately. I shave almost every day so I bought this thinking maybe it would help stretch it out a few days. I used it twice and broke out in a rash (just on the chin/neck area). I was sitting at work and subtley scratched my chin area. Thought nothing of it. Then I scratched a little more. Until I realized something wasn't right. By the time I got home I could see the red. My skin can sometimes be sensitive to new cleansers/creams/oils. It may work for some, but it didn't work for me. On a positive note, it's odorless, lol.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Great after shave product for smooth skin
Color: Green, Size: 2 Fl Oz (Pack of 1)
Not only does it help slow hair regrowth, it helps with razor burn too!
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Reviewed in the United States on June 8, 2026
★★★★★ 5
PLEASE MAKE A BIGGER SIZE, NEVER STOP MAKING THIS ‼️
I purchased this a few months ago back in November 2025 because of all the TikTok hype. It's now June 2026, and even though it's only 50ml, it lasts SO long. A little goes a very long way, and I still haven't finished it yet!!
I originally bought this to use after waxing my underarms because I'd always get painful bumps, irritation, itching, and overall discomfort. I'd only apply it at night, and by the next day the bumps and irritation had gone down significantly! Whenever I get bumps, irritation, or discomfort, I use it for about 3 days to a week and it works so fast 😍
I really wish they sold a bigger size because the reviews are not lying💯...this thing works wondersss. It's worth every single dollar. It's also pretty good at targeting ingrown hairs too. Like omg, it's basically a painkiller in a bottle 😂 It has saved the day so many times & I've used this quite a lot, lol.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Charming Roll-On Power
I've had a difficult time with shaving with sensitive skin. I can use multiple different types of razors, lotions and creams. It doesn't always work well for me. So I saw this mentioned on TikTok and I thought I would give it a go. I'm impressed by how good it calms any irritation or itchiness I may have. It applies on cool and and it's easy to use. It carries no scent. It's a small roll-on and lightweight. It's soothing and moisturizing to the irritated skin. Works like a charm. Would recommend!
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Reviewed in the United States on May 7, 2026