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Description
Klein Tools Hex Bit Set 47120INS 3/8 Inch Drive Insulated T Handle Set (9 Piece 1000V Rated ASTM F1505 Certified Class 2 Glove Extensions Lineman)Protect High Voltage Utility Maintenance Tasks and Track Insulation Wear with a Multi Layer Dielectric T Handle Array The Klein Tools 47120INS Insulated T Handle Hex SAE Bit Set is a professional grade 3 8 inch drive high voltage hand tool kit engineered for live line utility electrical operations up to 1000V. This 9 piece structural safety set features a three part insulation architecture certified to fulfill ASTM F1505 requirements for severe duty
Protect High-Voltage Utility Maintenance Tasks and Track Insulation Wear with a Multi-Layer Dielectric T-Handle Array
The Klein Tools 47120INS Insulated T-Handle Hex SAE Bit Set is a professional-grade 3/8-inch drive high-voltage hand tool kit engineered for live-line utility electrical operations up to 1000V. This 9-piece structural safety set features a three-part insulation architecture certified to fulfill ASTM F1505 requirements for severe-duty dielectric protection. Outfitted with an integrated white wear-indicator sub-layer that flags structural defects through the orange molding, this heavy-duty set leverages an oversized T-handle grip optimized for technicians utilizing Class 2 rubber insulating gloves to turn recessed switchgear components securely.
Best Used For:
- Live-Line Utility Fastening: Driving heavy hex-head hardware blocks and connection couplers inside live high-voltage environments up to 1000V.
- Recessed Infrastructure Maintenance: Passing deep into narrow industrial switchgear boxes, distribution transformer cores, and control panel cabinets via insulated extension bars.
- High-Torque Gloved Applications: Achieving peak rotational leverage on stubborn power grid fasteners while working with thick Class 2 rubber insulating gloves.
Key Performance & Safety Features
- 1000V Rated Protection: Engineered to satisfy rigid ASTM F1505 safety certifications for hazardous line operations.
- White Wear-Indicator Layer: Crystalline middle layer alerts users to replace the tool instantly if the outer orange surface becomes compromised or sliced.
- High-Torque T-Handle Profile: Oversized geometry channels muscle movement into uniform high-torque drive force without risking grip slippage.
- Dual Insulated Extensions: Paired 3-inch and 6-inch intermediate bars deliver reliable modular length configurations for deep terminal bays.
- Professional SAE Range: Precision-machined hex bits supply stable, non-slip 6-point interface contacts on fractional structural nuts.
What's Included
- (1) 3/8-Inch Drive Insulated T-Handle Wrench
- (1) 3-Inch Insulated Drive Extension Bar
- (1) 6-Inch Insulated Drive Extension Bar
- (6) Insulated SAE Hex Drive Bits: 5/16", 3/8", 7/16", 1/2", 9/16", 5/8"
- (1) Heavy-Duty Transport Carrying Case with Custom Foam Inserts
Technical Specifications
| Brand Manufacturer: | Klein Tools |
| Model Number (SKU): | 47120INS |
| Product Type Category: | Insulated T-Handle Hex Bit Set |
| Voltage Safety Limit: | 1000V Maximum |
| Safety Standard Code: | ASTM F1505 Certified |
| Drive Size Standard: | 3/8 in Square Drive |
| Measurement standard: | SAE (Imperial Fractional) |
| Handle Geometry Style: | Oversized Insulated T-Handle |
| Primary Metallurgy Base: | High-Strength Steel Alloy |
| Wrench Surface Finish: | Satin Nickel Plating |
| Total Kit Component Count: | 9 Pieces (Plus Protective Container) |
| Overall Case Length: | 15.0 in |
| Overall Case Width: | 11.0 in |
| Overall Case Height: | 3.0 in |
| Total Structural Weight: | 6.3 lbs |
| UPC Tracking Code: | 092644610851 |
PRO-TIP: When seating bits into deeply recessed bus bar couplings, click the extension assembly onto the T-handle anvil first, then guide the hex tip straight into the fastener cavity until it seats flush. This inline alignment protects the outer molded insulation from scraping against sharp metallic enclosure borders, preserving the structural life of your safety gear.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 3
Decent for the price. Instructions suck but most people should be able to figure it out. More below.
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
SUMMARY:
3 stars from me because it's firmly average. It's fine for the price. Assembly and materials are alright but I can see some caveats depending on your circumstances. Assembly instructions do a subpar job of pointing out some details.
ASSEMBLY INSTRUCTIONS:
Maybe it's because I'm autistic and/or building model kits and assembling stuff is my jam, but I honestly thought people were exaggerating when they were complaining about the instructions and I'd be able to flex my ~superior assembly skills.~ I was wrong! These instructions genuinely suck, and whoever is responsible for making them should be ashamed.
The instructions do a poor job of calling out some details regarding orientation of parts, and some of the images do not actually match the physical parts.
For example, it does not really outline the assembly of the end panels clearly, and I can see someone accidentally using the wrong poles. I've drawn over a photo to show what you should do to try and make it clearer. Additionally, the manual shows a flathead screw for bolting the feet into position, but the actual screw is not a flathead. It also does not point out the counterbore, so if you aren't paying attention you may put the foot pads onto the wrong side of the foot. It's also missing the fact that you need to use another one of the plastic pieces when you finish assembling a panel.
ACTUAL ASSEMBLY & MATERIALS:
To their credit, all of my bags were clearly labeled. The assembly process wasn't difficult. It's mostly just tedious and requires a fair amount of space. I was able to assemble it by myself without any real difficulty. However, the way it's assembled means two things.
One, the fabric parts aren't removable without disassembly. So if you want to use this in an environment where they would require cleaning, I would seriously recommend looking for another option. Or, you could buy this just to use the frame pieces and then somehow buy or make your own fabric pieces designed to be removable with velcro or something.
Two, because of the materials I really don't have a lot of faith in this thing surviving disassembly and reassembly. Like a lot of sorta-cheap-but-convenient furniture, it uses those spring-button connections and plastic inserts with self-tapping screws. Those things are not really meant to be disassembled and rethreaded. It also relies a lot on the tension of the poles and the fabric to keep everything rigid and squared, which I think puts a lot of pressure on the aforementioned buttons, plastic inserts, and the hollow metal rods. So I feel like that will also cause issues with disassembly and reassembly.
Basically once this thing is assembled, it's not really meant to be disassembled. The best you can do is spot-clean the fabric if you need to.
Speaking of the fabric, I didn't see any labels on them or anything in the manual that says what they are, but they feel like some kind of polyester. They generate static electricity pretty easily, and pet hair and debris sticks easily. So that's another downside of them not being easily removable.
For the most part it does seem pretty stable. The poles seem to be pretty uniform in length so they're all making contact with my floor. Obviously this isn't structural so it shouldn't be supporting anything, but the two main feet seem to be doing fine with keeping this thing upright.
CLOSING THOUGHTS:
Really, it's fine for what it is, but it could be better in a lot of little ways and the substandard quality of the instructions just seems unprofessional to me, which is why I'm being so harsh with my rating. Depending on your needs and environment you may want to consider a different option. Preferably one that is made to be disassembled with better materials, and/or one with fabric pieces made to be removed easily.
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Reviewed in the United States on May 28, 2023
★★★★★ 1
Not as it seems
Color: Black, Size: 6 Panel
these are awful... Each individual panel is fine, but when you put it together it can barely stand up, and the clips that hold it together keep popping off. Steer clear of this item.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
As described
Color: White, Size: 6 Panel
Works great in my clinic
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great Product that does exactly what it says it will.
Color: Beige, Size: 34"- 3 Panel
I really enjoy this product and it does exactly what it describes. I use it on my balcony. It is effective, but still very lightweight. It is easy to assemble as well. The price point is excellent. Also, I had an interaction with the company about an issue and they were incredibly responsive and helpful, fixing the issue immediately. Highly recommend.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Great WFH screen for video calls
Color: Black, Size: 22"- 4 Panel
I share a workspace with my hubs since we both work from home. I have the attention span of a 🐿️ and need this so I can focus on my work and not get distracted by him, since he is very amusing to watch. This screen is very lightweight and the panels can move and create a little cubicle around your workspace. I personally loved cubicles & despise open space seating, even at home. The ADHDer in my loves being able to block things away from my field of vision.
These panels also hide any mess behind you, especially if you forget to blur the background on Teams or Zoom calls or if you don’t have the option to change your backgrounds.
This was fairly easy to put together and very easy to move and adjust. The screen is a much better option than a sheet as I’ve seen others use on calls.🤦🏻♀️😂 I’m not sure how it will stand up around rambunctious pets or kids, but fairly certain it takes quite a push to knock it over. We have four cats & I’m pretty sure someone would try to climb this, which is why they’re not allowed in our workspace.
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Reviewed in the United States on April 10, 2025