









🛠️ Own the tool trusted by pros since 1857 — don’t get left behind!
The Klein Tools 666 #2 Square Recess Screwdriver features an 8-inch heat-treated, chrome-plated shaft for corrosion resistance, a patented Tip-Ident color-coded handle for quick tip recognition, and a cushioned, ergonomic grip with internal flanges to prevent twisting. Made in the USA with over 160 years of craftsmanship, it’s engineered for durability, comfort, and precision on combination head receptacles, switches, and panels.
| ASIN | B000LEVJC8 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #89,948 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #367 in Screwdrivers |
| Brand | KLEIN TOOLS |
| Color | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,255) |
| Date First Available | February 17, 2007 |
| Finish | Brushed |
| Global Trade Identification Number | 00092644851704 |
| Head Size | #2 |
| Head Style | Square |
| Included Components | Unit^Instruction Guide |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 4 ounces |
| Item dimensions L x W x H | 1 x 1 x 1 inches |
| Item model number | 666 |
| Manufacturer | Klein Tools |
| Material | Blend |
| Measurement System | Inch |
| Model Name | 229 |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | 666 |
| Pattern | Solid |
| Power Source | Hand Powered |
| Product Dimensions | 1 x 1 x 1 inches |
| Recommended Uses For Product | Electronics Item, Home Improvement |
| Shape | Rectangular |
| Size | 8-Inch |
| Special Feature | Durability |
| Special Features | Durability |
| Style | #2 Tip |
| Thickness | 1 Inches |
| UPC | 092644851704 |
| Warranty Description | 1 Year Manufacturer |
D**K
Great Tool
I’ve been using Klein tools for over 35 years. I really can’t think of any of them that I’ve ever bought that I was disappointed with this has been a lifesaver screwdriver for dealing with the square heads on the newer receptacles that of course, look like Phillips but are not
J**J
Great product
Just as described Good quality Great product
P**N
Perfect for driving small #0 Robertson screws
My go-to for most screw and fastener installation work is a hex bit in a driver of some type, but there are some niche tasks where I really need the tactile feel and feedback of a single-size screwdriver. I this case I needed to tighten down some small wood screws in hardwood without snapping the screws off in the wood or rounding out the heads. This thing worked like a champ. The rubber grip was comfortable and large enough to get the right amount of torque (a lot). I was using hardened screws and concerned the tip of the driver would break off before the screws gave out, but the tip fit the #0 Robertson recess perfectly and was hard enough to avoid getting rounded off. Overall, very happy with this purchase.
A**Z
Must Have For Electricians
Square screwdrivers are a must for electrical work, especially when working on panels. 8" is long, but it comes in handy when working in deep boxes or when you need that extra reach. Klein Tools screwdrivers can get a little pricey, but they make the best screwdrivers. They are made in the USA and will last forever.
G**G
Great screwdriver
Great screwdriver
P**N
Too long but good product
Longer than I anticipated. 4 inch is a better length.
O**E
Item as described works great on breakers.
Arrived on time great fitment just a little longer than I thought it would be going to get a four inch isolated one next.
D**.
For Pocket Holes
I bought this, along with a T25 screwdriver, for tightening the last little bit of screws after running them down with my impact driver. The #2 bit of this tool, with the length, accesses kreg pocket holes. I always worry that using a drill or impact driver will over drive the screws in and prevent a good joint. This alleviates that worry. I wouldn't necessarily run the screw in completely by hand, but I'd use this for the last 1/4 turn worth to snug it down. Same goes for the T25 I bought (different brand) for construction screws. Klein makes good tools at a cost. I'd recommend spending the money on good tools rather than paying twice for a crap tool and then a good tool.
L**D
Great handles holds screws superb
C**R
Nice comfortable handle. Sturdy, made in the USA.
J**.
Been a longtime Kiein fan from their meters to their hand tools . I bought this to replace the one I somehow misplaced . Can't beat Klein
W**E
Klein tools are the best. Don't use this one too much, but this driver is deadly. Typical klein quality, though it's typical klein cost! Try to buy a few tools to get that free shipping!
S**O
good quality tool
Trustpilot
1 month ago
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