Klein Tools 409-70591 9-Key Folding Hex Nutdriver
- 5/64, 3/32, 7/64, 1…
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Cabinet-tip rotary screwdriver with a 3/16-inch slotted blade and Rapi-Driv shank for fast driving
This Klein Tools 670-3 rotary screwdriver is built for driving slotted fasteners. Its Rapi-Driv mechanism allows rapid rotation when turning by hand. The chrome finish resists corrosion during daily use. A 4-inch shank reaches recessed screws in cabinets and electrical boxes.
The 3/16-inch cabinet tip fits standard slotted screws found in wood joinery and terminal blocks. The rotary action speeds up long threads without needing a power driver. Users needing Phillips, Torx or hex profiles will need a different tool. Heavy impact applications require a driver designed for striking.
This single dimension determines whether the bit reaches fasteners set back inside housings or panels. The 7-3/4-inch overall length provides leverage while the shank bridges the gap. If the recess is deeper than four inches, this screwdriver cannot engage the screw head.
Measured against everything we stock in Screwdrivers, Nut Drivers & Hex Keys, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | Klein Tools |
| Model name | 670-3 |
| Product type | Screwdrivers |
| Color and finish | Chrome |
| Size & build | |
| Handle construction | U.S. Steel |
The chrome-plated steel handle dissipates hand warmth naturally; no motor or electronics are present to generate additional heat during extended use.
Slotted screws with a 3/16″ wide straight slot — the blade matches that exact width and profile.
Yes, the 4″ shank length provides extra reach for deep or counter-bored fasteners common in legacy installations.
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