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Internet # 317064849

Model # M2O41643KIT

Voltage/Continuity Tester and Heavy-Duty Wire Stripper Tool Set

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  • Voltage tester measures AC/DC to 600V and tests continuity
  • Klein voltage tester checks GFCI-protected circuit functionality
  • Wire stripper for 8-18 AWG solid and 10-20 AWG stranded wire
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Product Details

About This Product

This tool set includes a Voltage / Continuity Tester (Cat. No. ET250) and a Heavy-Duty Wire Stripper (Cat. No. K12065CRSEN). Klein Tools ET250 is a solid-state, digital voltage and continuity tester. It measures AC/DC voltages up to 600V and tests for continuity. Additionally, the ET250 tests GFCI protected circuits to verify that the GFCI device is functioning appropriately. The tester includes a backlight and integrated flashlight for working in reduced ambient lighting conditions. The Wire Stripper / Cutter / Crimper Heavy-Duty Multi Tool is built with the durability of pliers, the sharpness and precision of a wire stripper and an integrated crimper. This American-made tool provides durable wire cutting, stripping, crimping and twisting plus bolt shearing in one tool. Four times (4X) stronger than traditional Klein wire strippers. This tool strips 8 to18 AWG solid and 10 to 20 AWG stranded wire and crimps 10 to 20 AWG stranded. Easily twists three wires at a time.


  • Includes wire strippers and an electrical tester
  • Voltage tester automatically selects voltage or continuity, automatically powers on when any measurement is attempted
  • Backlit LCD display
  • CAT IV 600V modern solid-state design for safety
  • Tests GFCI protected circuits
  • Uses standard replaceable multimeter test leads
  • Integrated flashlight
  • 9.8 ft. (3 m) drop protection
  • IP53 dust and water resistant
  • Wire Stripper with six stripping holes for 8-18 AWG solid and 10-20 AWG stranded wire
  • Multitool's side cut design features longer knives for more cutting
  • Crimps non-insulated connectors, lugs and terminals for 10-20 AWG stranded wire
  • Knurled jaw for twisting, grabbing and looping wire
  • Twists up to three wires at a time
  • High-leverage design for improved performance
  • Klein-Kurve comfort grip handles for reduced hand fatigue
  • Induction hardened cutting knives for long life
  • Hot-riveted joint ensures smooth action and no handle wobble
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Product Information

Internet # 317064849

Model # M2O41643KIT



Electrical Tools Features

Auto Ranging, Automatic Measuring, Backlit, Handheld, Hot Riveted Joint, Induction Hardened Steel

Hand Tool Type

Electrical Tool Set

Number of Pieces




Tools Included

Electrical Tester, Plier

Tools Product Type

Hand Tool

Warranty / Certifications

Manufacturer Warranty

Please refer to the attached warranty document in the Product Overview section above under Info & Guides.

Questions & Answers

Q:Can this meter test down to 10Mv ? example on a thermal couple
by|Oct 11, 2023
1 Answer
Answer This Question

A:  AC Voltage Range: 2 – 600V AC RMS, DC Voltage Range: 2 – 600V DC, Resolution: 1V, Accuracy: (2% + 2V)

by|Oct 12, 2023
    Q:Does this tester load the circuit to eliminate transient voltages?
    by|Aug 31, 2023
    1 Answer
    Answer This Question

    A:  No

    by|Sep 16, 2023
      Q:Does the meter vibrate if voltage is present?
      by|May 11, 2023
      1 Answer
      Answer This Question

      A:  No

      by|May 25, 2023
        Q:Can you test electric water heater elements for continuity?
        by|Jan 29, 2023
        1 Answer
        Answer This Question

        A:  Yes

        by|Jan 30, 2023
          Showing 1-4 of 36

          Customer Reviews

          4.4 out of 5

          • 4.4 out of 402 reviews
          • 86% recommend this product
          Filter by:
          Showing 1-10 of 402 reviews
          Issues with quality
          Handles come off. They only use a tiny bit of glue or epoxy that doesn’t stick. Mine came with bad burrs so they would stick in the closed position and wouldn’t strip properly. After using a file towards the back between the largest stripping hole and the side cutting part they sort of work and don’t stick as much. Still doesn’t work well for stranded wire, so the tolerances are not correct. The design is excellent but the quality is low
            Way too over priced
            Poorly manufactured, 1 week old and the entire handle slipped off and 40 bucks dow the drain
              Poorly Made and Defective
              Klein has serious manufacturing and quality control problems with its "heavy duty" combo stripper tools. I bought this to replace a horrible Klein K12035 (grossly misaligned jaws, pliers tips that are not even and do not close all the way, and cuts lots of strands when stripping). This tool did strip well. However, it was a complete fail because IT COULD NOT CUT bare stranded copper wire (like 18AWG). All it did was crimp the wire with a straight crease. It would not cut unless I wiggled the wire back and forth to break it. Klein itself has been inept, dysfunctional and slow to deal with. Klein customer service will delay and delay and waste your time. I'm really disappointed in the tool and with Klein.
              • Verified Purchase
              1 found this review helpful
              All in one tool that really lightens the load
              I have used this tool daily for about 1 month now. Our company does electrical and hvac install and troubleshooting. I head into the customers location carrying only my meter, my Klein 11 in 1 screwdriver, and this Klein Kurve heavy duty stripper. This tool has replaced my linesman pliers, my wire strippers, my crimpers, and my long nose pliers. Greatly reducing the weight of my service bag. Most importantly, it does the job of all those tools equally as well, if not better. A lot of tool manufacturers attempt to make a multifunction tool, but most are not very good at it. You're usually left with a lot of empty promises and a tool that rarely gets used. That is never the case with Klein. I love my Klein Kurve heavy duty strippers and crimper tool. It cuts heavy wire with ease, trims bolts like butter, makes perfect crimps, strips wire effortlessly, and has no problem reaching in the back of a furnace cabinet or junction box to grab a part that has fallen out of reach. Best of all, this one tool can also twist a bundle of wires and make a perfect pig tail. I highly recommend this tool!
                • Recommended
                3 found this review helpful
                BAS Controls Technician review
                Klein Tools has provided me with free product and additional incentives to provide an honest review of this product. Klein Tools Klein-Kurve Heavy-Duty Wire Stripper/Crimper (K12065CR) is a very sturdy wire stripper. It comes in a normal clamshell package that is very easy to open. On one side the stripping holes are labeled with a light grey print. The cutting blades and stripping holes are all on the front side of the stripper. I have found that it will strip most 18AWG stranded wires with very little effort, as long as you can find the right slot. The handle is very comfortable. I usually hold it with the curve side against my thumb. Unfortunately when I strip the wires I typically use (18AWG multi-conductor wire), I end up flipping the stripper over so I can’t see which hole I need to use since the back side isn’t marked. The other main drawback I have is that because it is designed as a heavy-duty stripper, it is very wide and hard to maneuver in the tight spaces I have to work in as a BAS controls technician. I would expect that in normal everyday usage, this is a hard set of strippers to beat! #kleintools #kleincrusaders
                  • Recommended
                  Excellent tool for maintenance work
                  So I have been using these for a couple of weeks now and I am ready to offer a review. These pliers are very useful. I work in systems and electrical maintenance so it is great to have multiple tools in one and these meet the mark. They are well made and strong I have tested every feature they offer and everything works well. The only thing that I can find that is a con is the stripper section is a bit thick and that makes it slightly more difficult to line up the right size. I find that to be a minor issue though and these have earned a permanent position in my tool pouch.
                    • Recommended
                    Fire Alarm Tech
                    I only use Klein strippers, and these kept the high standard Klein always delivers. The wire cutters/strippers were sharp just as any other Klein strippers or diagonal cutters. I would recommend these to anyone who works in the field of electricity, both high and low voltage.
                      • Recommended
                      Great Product!
                      Klein stripper review Klein Tools has provided me with free product and additional incentives to provide an honest review of this product. #kleintools #kleincrusaders Everything works really well and it is nice to have a combination of tools that require take up less space. Cutters work great and so do the strippers and pliers. I think that this tool is a real value and the features that are packed in this pair of pliers keep the real estate taken up in your pouch to a minimum with maximum application capabilities.
                        • Recommended
                        1 found this review helpful
                        Solid Wire Strippers
                        Klein Tools has provided me with free product and additional incentives to provide an honest review of this product. They sounded like a great idea so I was a but curious to see how these would perform. They are the typical rock solid quality you expect from a brand like Klein. The cutters handle 1/8 stainless steel cable no problem. It's nice having a tool that can handle so many tasks effectively. Some heavy duty strippers fail miserably when it comes to twisting wires but this takes care of things so you can move on. Recommend having one in your bag. #kleintools #kleincrusaders
                          • Recommended
                          Multi-purposeful and extremely useful
                          This is a great tool for any kind of wiring. This tool eliminates having multiple tools because of the strippers, crimpers, cutters, and flat section on top to twist wires together. This just allowed me to get rid of some tools when doing outlets and lights. this is truly a terrific tool. The grip is comfortable and the pliers are durable and made in the USA
                            • Recommended
                            1 found this review helpful
                            Showing 1-10 of 402 reviews