screwdriver insulation for the screwdriver

[iJaffar]

I’ve been using the LTT screwdriver almost daily for about three years for everything from PCs and cars to 240 V household electrical work (which I know isn’t exactly safe). Example: Sometimes, when working on my car, I have to touch a live 12 V wire (nothing serious) but I still need to be careful that the screwdriver doesn’t touch the body and short a fuse. recently I added a heat-shrink tube to the shaft of the screwdriver for insulation, and honestly it made my workflow faster and safer ofc, so I thought I’d share this with you guys it might help a new line of products, or maybe spark some better ideas for improving it.

 

btw it looks cooler.


note: I left the upper part un isolated because I didn't want to directly put heat over the magnet and i always use it a temporary screws holder when I'm working so didn't want anything to effect my experience 

 

[Timme]

31 minutes ago, iJaffar said:

I have to touch a live 12 V wire

Why do you work with live wires to begin with? 

[iJaffar]

26 minutes ago, Timme said:

Why do you work with live wires to begin with? 

well if you diagnose something, sometimes you need it to be live or for example you're installing a stereo system on the car and you're tightening the wires to the amplifier this is a simple thing and no one would disconnect the battery for it 
or on some cars you can't just disconnect the battery because they have an auxiliary battery and alot more 

[Taz900]

Have thought of just wrapping some electrical tape around the exposed area, may not look pretty but will insulate.

[Poinkachu]

1 hour ago, Taz900 said:

Have thought of just wrapping some electrical tape around the exposed area, may not look pretty but will insulate.

Short term, its fine.
Long term, its bleh.

Those tape leave sticky gunk.

 

Plus if he was afraid of interfering with the magnet strength with heatshrink, tape would have pretty much the same effect as shrink.

[kirashi]

7 hours ago, iJaffar said:

for example you're installing a stereo system on the car and you're tightening the wires to the amplifier this is a simple thing and no one would disconnect the battery for it or on some cars you can't just disconnect the battery because they have an auxiliary battery

Um. Ummmm... while you're not wrong that you can perform certain work on certain vehicles without disconnecting batteries, this is very foolish, especially if the vehicle has airbags or is modern enough to have other sensitive electronics. Again, you are welcome to do what you wish with your vehicles, however, I do not recommend working on vehicle electrical systems without disconnecting batteries.

[iJaffar]

3 hours ago, kirashi said:

Um. Ummmm... while you're not wrong that you can perform certain work on certain vehicles without disconnecting batteries, this is very foolish, especially if the vehicle has airbags or is modern enough to have other sensitive electronics. Again, you are welcome to do what you wish with your vehicles, however, I do not recommend working on vehicle electrical systems without disconnecting batteries.

I don’t know why people focusing on my examples and not the idea, yeah it’s not the smartest thing to do but i have been doing it for years and some other stuff that I wouldn’t share it here, it’s an amazing screw great quality. and this would add to it and definitely didn’t effect my experience so i thought of sharing it with you guys.
 

 

Although from experience you won’t set the airbag off for sure, worst case scenario is you blew a fuse. And some modern cars don’t like to be disconnected from the battery you need to clear faults because it will throw codes once you disconnect the battery + setting everything up again it’s recommended to do so but for some jobs but me personally it’s easier to diagnose 

 

Disclaimer: I didn’t mean actual car electrical systems, more like changing a part like windows actuator  - speakers small stuff or at the house changing a switch I wouldn’t touch a live wire with it but at the same time it’s good to know you’re isolated even for opening the actual switch just in case 

[Taz900]

14 hours ago, Poinkachu said:

Short term, its fine.
Long term, its bleh.

Those tape leave sticky gunk.

 

Plus if he was afraid of interfering with the magnet strength with heatshrink, tape would have pretty much the same effect as shrink.

he is not worried about the heat shrink interfering with magnet, he is worried about the fact if you heat up a magnet, it loses it strength.
am sure if a heat gun will be  stronger enough to reduce the power of the magnet.

[iJaffar]

On 12/14/2025 at 7:15 PM, Taz900 said:

he is not worried about the heat shrink interfering with magnet, he is worried about the fact if you heat up a magnet, it loses it strength.
am sure if a heat gun will be  stronger enough to reduce the power of the magnet.

you're not wrong but it's the heat shrink too im trusting this magnet a lot and i mean a lot i had 10 small screws hanging in there while im working