612-4 Terminal Block Screwdriver, 1/8-Inch, 4-Inch Shank

Overall Length: 7 3/4" (200mm) Shank Length: 4" (100mm) Tip Width: 1/8" (3.2mm) MAIN ADVANTAGE: A small tip width, with a larger diameter handle than most 1/8" tip screwdrivers...Klein's miniature series included, this link was previously the best Klein screwdriver with a 1/8" tip, but note the small handle diameter Klein Tool 608-4 1/8-Inch Cabinet Tip Miniature Screwdriver with 4-Inch Round Shank MAIN DISADVANTAGE: The temptation to use it on things other than low torque wire terminating, which will likely result in a broken tip. Just because you see that reliable black and yellow sticking out of the dark recesses of your tool bag, don't give in to temptation and begin to use this on any other type of screw other than a terminal block. THIS TOOL FITS 99% of the terminal blocks in our facility. I found one type that had a just under 3mm screw hole width (screwdriver tip is 3mm wide), which made me have to pull out the old precision screwdriver. But, they are fairly rare and you can count on this fitting most standard IEC and NEMA blocks. The truth is I could have forced this tool down into the hole and probably tightened the screw, but that leads to other problems with distorting the terminal block and causing the tightening screw to move over and disappear. IT SEEMS UNIMAGINABLE that a Klein screwdriver (other than one that uses 10 different bits) would get any other rating other than 5 stars. This one is no different. I have searched feverishly for a high quality regular screwdriver that will work on terminal blocks. I have been struggling with different sets of precision screwdrivers for years trying to find one that will produce the proper torque, fit in the screw properly and last (many broken undersized tips in my past). LOOSE TERMINAL BLOCK SCREWS in an industrial facility are producing downtime at an ever increasing rate, as things get more automated. I believe they are so common because few technicians (me included) own a screwdriver that will tighten the screw properly. Especially if there are more than one wires under the same terminal block screw. Control panels/terminal blocks are the central nervous system of the facility. Now you can give them the attention they deserve and put that "precision" screwdriver to work tightening your sunglasses, not critical controls terminations.

Good screwdriver. This is great for tightening Phoenix terminal and other small terminal. A must have for panel builders

This fits into the slot in the back of the outlets and switches to release back stabbed wires for when your apprentice does every 3 way wrong and you have to fix them all

Excelente

I work on fire alarm and security systems. Most panels have normal screw terminals but if you work on security too, you know DSC likes to use those little screw terminals on everything. Fire-Lite also has them. This screwdriver has a full size handle but the perfect sized tip for DSC and access control panels and anything that uses those little screws. Get one. Get four or five so you have spares. You’ll immediately see what you’ve been missing, the full size handle means you can get better torque for tightening wires down versus using a pocket tweaker, which also tends to round off after a few years, if you constantly use the free ones we all find! Seriously, you won’t be disappointed. The Vaco one is also worth the money. I got both and they get used daily.

Black is positive, red is negative, add silicone to help hold down and also seal the entry way on the wires...good light, bright.

These drivers live up to the Klein reputation. Do not 'lend' this to friends unless you intend on 'donating' it. ...you likely won't get it back! Good quality driver that holds up well.

Fantastic must have for I&C

The Klein Tools 612-4 is perfect for terminal block work. The precision tip fits screws snugly, and the 4-inch shaft reaches tight spots easily. The handle is comfortable with a solid grip, and the overall build feels durable and professional. A great addition to any electrician's toolkit.

Le he dado un uso diario en mi trabajo me ha resultado muy útil y cómodo, su mango amplio es excelente y también te garantizo que podrás retirar cualquier tornillo sin mucho esfuerzo(transmite muy bien el torque) , ya tengo unos meses usándolo y sigue en perfectas condiciones, lo recomiendo ampliamente para tableros de control.

Tiene una comodidad y seguridad al momento de cablear con clemas

I've used it hundreds of times. I work on mobile equipment and my first move when they start acting up is to tighten all the din rail connections. When our equipment travels on gravel or is just running the vibrations tend to loosen everything. And when I need to tighten a few hundred screws as fast as possible this is the screwdriver I reach for. Nice big handle. Comfortable. Lots of reach. And the blade hasn't deformed at all. I would buy this again if I lost it.

Excelente desarmador, justo lo que necesitaba.