FREE Shipping Direct from our US Warehouse

Dangerfield 'J-Tool' Reach-Through Door Thumbturn Opening Tool

$28.99 $34.99

FREE Delivery

Enjoy FREE domestic shipping on orders over $40 within the contiguous U.S.

All our orders are packaged discreetly for your convenience and dispatched the same or next working day from our warehouse in Florida.

You can choose to upgrade your shipping at checkout for faster delivery (3 - 4 days).

Free shipping takes 4 - 7 days approx to be delivered in the US.


FREE Basic Lock Pick Guide

Every lock pick set receives a basic How to Pick Locks 30 page PDF sent to you after purchase of a lock pick set.

Alternatively, you can buy our Expanded, fully illustrated 60 page How-to Guide in store for easier, tactile page turning and guidance while you learn!

About this Item

  • Instant access: Manipulate thumbturns through the door with ease—no lock-picking required.
  • Sleek and strong: Lightweight enough to carry everywhere, but tough enough to tackle stubborn thumbturns.
  • Designed for emergencies: When locked out, speed is crucial, and this tool guarantees fast, non-damaging entry.
  • Crafted for professionals: A locksmith’s go-to for quick, reliable results in high-pressure situations.
  • Trusted by pros: Top-rated by locksmiths for its ease and effectiveness during urgent access scenarios.
 

Description

Dangerfield J-Tool: Reach-Through Door Thumbturn Opening Tool

A MUST-HAVE for any WORKING LOCKSMITH

Watch VIDEO at bottom of page.

The J-Tool works by exploiting the tiny gap between double doors (the type you'll see on commercial buildings) therefore allowing you to activate the interior thumbturn lock and gain NON-DESTRUCTIVE ENTRY quickly, easily, and with no mess or hassle.

With a little understanding and practice, you'll be able to use this tool in a matter of seconds.

The handle is comprised of two sections. The red part doesn't move, allowing you to insert the tool between the doors, and turn the 'u-shape' into position to engage the thumbturn part of the lock in the interior.

The shorter, black section of the handle is what engages the turning part of the tool, so once it's in position, you simply turn the lower, black part of the handle and rotate the tool, causing the thumbturn to unlock the door.

How to use:

  • Insert the 'U-Shaped' part through the gap between the doors
  • Turn secondary handle part to line up 'grabbing part' with thumbturn
  • Turn Primary handle part to turn 'grabbing part' to turn the thumbturn
  • The door is open

 

Occasionally, where there's not enough room to insert the tool, you can insert an inflatable AIR-WEDGE like one of THESE and create the tiny gap required for easy insertion. Having an air-wedge alongside this tool will make it even more effective and is recommended - but not always essential. They're handy to have in your kit-bag for many other reasons too.

The J-Tool also works on security grates and grilles. This tool is especially useful for first responders and of course, locksmiths, to avoid destructive entry on commercial doors, and allow for rapid entry.

See the J-Tool working in this VIDEO:

Dangerfield J-Tool through Door Thumbturn opener
Dangerfield

Dangerfield 'J-Tool' Reach-Through Door Thumbturn Opening Tool

$28.99 $34.99

Summary

  • Instant access: Manipulate thumbturns through the door with ease—no lock-picking required.
  • Sleek and strong: Lightweight enough to carry everywhere, but tough enough to tackle stubborn thumbturns.
  • Designed for emergencies: When locked out, speed is crucial, and this tool guarantees fast, non-damaging entry.
  • Crafted for professionals: A locksmith’s go-to for quick, reliable results in high-pressure situations.
  • Trusted by pros: Top-rated by locksmiths for its ease and effectiveness during urgent access scenarios.
View product