Question 1

Can the be shrunk with a hair blow dryer?

Accepted Answer

Yes, but it depends on the quality of the dryer and how it is constructed.
The coils definately get hot enough to shrink the tubing, but the blowing air will not carry enough heat to do anything. You need to let the coils warm for a bit on high, then get the tubing as close as you can to them. Most hair dryers have baffles that prevent objects that are flamable (hair) or conductive (the wire you're holding) to get close to the heating coils.
tl;dr It's worth a shot.

If it fails - a cigarette lighter will work just as well and heat guns are cheap, too.

Question 2

CAn it be used for 12 awg or 10 awgg electrical cable?

Accepted Answer

Of course, I bought this set cuz I needed a heat shrink tube that was large enough to fit over my true 4AWG of OFC power & ground wire for my 3500watt amp & the largest 13mm pieces were just large enough to fit on my 4AWG & since I ran 10AWG for my speaker wire I can absolutely assure that this set has plenty of sizes that would fit perfectly for 10 & 12AWG Sized wire. Hope this helps

Question 3

Can I put these tubing on my tools to insulate for electrical work

Accepted Answer

...which electrical?  Automotive ?  12 volt range?  Go for it.
...home wiring? 120-240 volts?  Should be safe enough, however one  does not know what the dielectric strength of the heat shrink is.
Back Muppet Labs and break out the test gear, Beeker!
..residential power lines/h.v. transmission lines?  Really?  Use the approved tools.  Don't reinvent the wheel.

Question 4

Can the tubing be cut in half lengthwise to get it over wiring which has a plug already attached, and still be heat Shrank?

Accepted Answer

You can do this but it will no longer be a tube. You want to get "Marine (Grade) Heat Shrink Tubing", sometimes called "Dual Wall" shrink tubing, it is adhesive lined so it will stick when you wrap it around the wire, then it will seal when you heat it.

ASIN	B072PCQ2LW
Best Sellers Rank	#164,202 in Kitchen ( See Top 100 in Kitchen ) #73 in Air Conditioner Tubes
Brand	Eventronic
Color	Multicolor
Customer Reviews	4.6 4.6 out of 5 stars (21,798)
Enclosure Material	Polyolefin
Installation Type	Self-Adhesive
Item Dimensions L x W	46L millimeters
Item Weight	0.31 Pounds
Manufacturer	Eventronic
Mfr Part Number	asd-123
Model Number	asd-123
Number of Pieces	600
Style Name	560PCS-5 colors/12 Sizes
UPC	669819714067
Unit Count	1.0 Count

Eventronic 560PCS Heat Shrink Tubing 2:1, Electrical Wire Cable Wrap Assortment Electric Insulation Heat Shrink Tube Kit with Box(5 colors/12 Sizes), Black, Red, Blue, Yellow, Green

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