Would this work with molex automotive connectors? say molex 1326030-2

The crimp tool is CORRECT, but the CRIMP DIES it comes with are not. As others have stated, it comes with dies for insulated barrel connectors. I have not found this crimper to be sold with the open barrel connector dies but you can buy them separately. The correct Klein Tools VDV205-036 Wire Crimper Die, Terminal, Open Barrel, AWG 10-20, Replacement Die set is currently sold on Amazon as well.

Anyone know if this could be used on a 10 AWG copper cable lug like the type used on batteries?

These crimpers are rated for up to 10 AWG, will absolutely work for that size wire. Most automotive battery main cables are MUCH larger than 10awg, more like 6awg - 2awg, and these would NOT WORK for those sizes. 10awg - 22awg is the capacity range.

What is the thickness of the dies/gap for them to slide into the tool? Standard is 4mm, looking for one that fits 5mm wide dies.

I have been working in electronics for 50 years and still not clear. But might I suggest you either buy the crimping tool and if it doesn't suite your needs, simply return it. Or you could check the Klein Tools website yourself for detailed drawings.

The ad clearly says for "stranded copper wire", but the photos also clearly show crimping on solid wire. Does it work correctly on both wire types

I recently was installing a TV antenna. Code requires that external antennas be grounded with #10 or larger copper wire (or some other alternatives). So I used #10 solid copper wire. With one of those combination wire strippers, screw cutters, crimpers things, and squeezing as hard as I could, I could not get the crimp tight enough to keep the wire from sliding out. So I tried the Klein 3005CR. I saw that it was for stranded only, and was worried, but decided to give it a try anyway with the solid wire. It worked absolutely perfectly.

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Description

🔧 Master your wiring game with precision and power!

ERGO GRIP COMFORT - Dual-material molded handles reduce hand fatigue during long projects
FORCE DIAL CONTROL - Customize crimping pressure for perfect results on every wire gauge
POWER PACKED SQUEEZE - Adjustable compound action delivers maximum crimping force effortlessly
RATCHETED RELIABILITY - Built-in ratchet guarantees uniform crimps every single time—no guesswork
TRIPLE CAVITY PRECISION - Crimp red, blue, and yellow terminals with one pro-grade tool

The Klein Tools 3005CR Wire Crimper is a professional-grade, ratcheting insulated terminal crimper designed for 10 to 22 AWG stranded copper wire. Featuring three crimping cavities for multiple wire gauges, an adjustable compound action for enhanced crimping power, and a built-in ratchet for consistent full-cycle crimps, this tool ensures reliable, uniform connections. Its ergonomic dual-material grips and force adjustment dial make it ideal for electrical, automotive, and DIY projects, backed by a 1-year manufacturer warranty.

Specifications

Brand	KLEIN TOOLS
Color	Red and Black
Item Weight	1.3 Pounds
Product Dimensions	9"L x 3"W
Handle Material	Plastic
Grip Type	Ergonomic
UPC	092644344008
Manufacturer	Klein Tools
Global Trade Identification Number	00092644344008
Part Number	3005CR
Item Weight	1.3 pounds
Item model number	3005CR
Is Discontinued By Manufacturer	No
Size	One Size
Style	Insulated Terminals
Finish	Brushed
Material	Steel
Pattern	Solid
Shape	Rectangular
Power Source	hand powered
Item Package Quantity	1
Special Features	3 Crimping Cavities
Usage	Electrical wiring, DIY projects, professional use, automotive work, home improvement tasks
Included Components	Ratcheting Crimper, 10-22 AWG
Batteries Included?	No
Batteries Required?	No
Warranty Description	1 year manufacturer

Reviews

W**Y

solid tool

solid tool. Yes it's heavier than the cheap ones but very solidly built and does a great job crimping. FYI, some people don't like the grip required to release the ratchet mechanism. Look closely at the photo. It has a release lever and it is adjustable so you can set to where you want it or just flip the lever.

1.09.2025

D**

100%

This is I looking for

12.09.2025

D**P

Just get one

Excellent tool and reasonable

11.09.2025

L**E

Worth every penny.

This tool is the best. Top quality heavy duty crimper.

5.09.2025

D**C

Massive and heavy

Clearly well made - not in the USA - seems Klein Tools joined the many manufacturers going east. The crimper is heavy and a bit awkward to use. Requires very strong and preferably big hands. I don’t have big hands but managed ok for the few crimps I needed done. It does have a “switch” that gets released and ready for the next crimp only when the handles were pressed really hard to finish the crimp. Had I needed to use it all day long or for prolonged periods - it would not have been my choice tool but for occasional usage for someone who appreciates well made tools - i will keep it. I purchased another brand for almost half the cost of this one and it is lighter. It worked fine too - i am keeping both (2 different places).

23.07.2025

G**D

Can’t ask for anything better

Great quality

11.09.2025

F**L

I hated crimped connected and this has changed my mind forever.

Worth it, changed my mind on crimping. So, all through my adult life I have hated crimped contacts. They just never worked for me, then one day I'm watching a youtube video and I'm like, "maybe I should give it another try but this time I'll use a "professional tool" ". Well I got the most expensive one (I think it is maybe not) and you what? It worked, all these years I was not squeezing hard enough, not even close. This tool fixed that problem, I can recommend this one.

18.07.2025

A**N

Pays to get quality

It works extremely well with secure, tight crimps and it can be easily be adjusted to a persons grip strength. Quality tool and good value for the price. I like that it double crimps and is easy to align the joint. Solid tool

25.07.2025

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