Klein Tools Keystone Screwdriv...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$65.99
$14.54
Klein Tools 1/4-Inch Keystone Screwdriver, 4-Inch Round Shank

Klein Tools Keystone Screwdriver 1/4-Inch Tip 4-Inch Round Shank Cushion Grip Chrome Finish

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Model: 602-4
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$65.99
$14.54
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Klein Tools Keystone Screwdriver 1/4-Inch Tip 4-Inch Round Shank Cushion Grip Chrome Finish

Professional-Grade Keystone Screwdriver for Electrical and General Applications

The Klein Tools Keystone Screwdriver delivers professional-grade performance for electrical installation and general construction applications. This precision-machined screwdriver features a 1/4-inch keystone tip with 4-inch round shank designed for electricians, contractors, and maintenance professionals, providing the reliable performance and industry-leading quality that tradesmen demand from America's most trusted tool manufacturer since 1857.

Professional Features & Benefits

Precision Performance

  • Precision-Machined Tip - Exact fit keystone configuration ensures optimal contact with screw slots for maximum torque transfer and reduced cam-out
  • Special Heat-Treated Shaft - Enhanced durability and strength for demanding electrical and construction applications with Klein's rigorous quality standards
  • Tip-Ident® System - Quickly identifies screwdriver type and tip orientation for efficient tool selection and professional workflow
  • Chrome-Plated Finish - Premium corrosion resistance and smooth feel for long-lasting performance in harsh work environments

Durability & Construction

  • Hex Bolster Reinforcement - Reinforces shank for heavy-duty use and allows wrench-assisted turning for stubborn fasteners
  • Internal Flanges - Solid, twist-resistant blade anchor inside handle prevents blade separation under high torque applications
  • ASME/ANSI Compliance - Meets or exceeds applicable specifications for professional tool standards and workplace safety requirements

Ergonomic Design

  • Cushion-Grip™ Handle - Enhanced comfort and torque control reduces hand fatigue during extended use with superior grip texture
  • Made in USA - American craftsmanship and quality control ensures consistent performance and reliability for professional tradesmen

Technical Specifications

Overall Length: 8.344 inches, Shank Length: 4 inches, Tip Size: 1/4-inch keystone configuration, Handle Material: Cushion-Grip with internal flanges, Shaft Material: Heat-treated steel with chrome plating, Weight: 0.25 lbs, Finish: Premium chrome for corrosion resistance, Construction: Round shank with hex bolster reinforcement

Installation & Usage

  1. Select appropriate keystone screwdriver size using Tip-Ident® marking system for proper screw slot engagement
  2. Position screwdriver tip squarely in screw slot ensuring full contact across keystone width for maximum torque transfer
  3. Apply steady downward pressure while turning to prevent cam-out and maintain positive engagement with fastener
  4. For stubborn screws, utilize hex bolster with wrench for additional leverage while maintaining control
  5. Inspect tip condition regularly and maintain chrome finish for optimal performance and longevity
  6. Store in dry location to preserve Klein Tools quality and prevent corrosion of precision-machined surfaces

Professional Applications

Ideal for:

  • Electrical Installation - Switch plates, outlet covers, junction boxes, and electrical panel components requiring keystone slot fasteners
  • Construction Work - General carpentry, cabinet installation, trim work, and hardware mounting applications
  • Maintenance Operations - Equipment servicing, machinery repair, and facility maintenance requiring precision screwdriver work
  • Telecommunications - Network equipment installation, cable management systems, and communication panel assembly
  • HVAC Applications - Ductwork assembly, control panel access, and ventilation system component installation
  • Residential Wiring - Home electrical projects, fixture installation, and residential panel work
  • Commercial Electrical - Office building electrical systems, retail installations, and commercial facility maintenance
  • Industrial Applications - Manufacturing equipment maintenance, control system work, and industrial electrical installations

Heat-Treated Steel Advantage

Klein Tools special heat-treatment process creates optimal hardness and durability for electrical applications. The precision-machined keystone tip maintains exact dimensions for consistent screw engagement, while the chrome-plated finish provides superior corrosion resistance. This combination of metallurgy and surface treatment ensures long-lasting performance in demanding professional environments.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has maintained its commitment to American craftsmanship and professional-grade quality. Each screwdriver undergoes rigorous testing protocols and quality control measures to ensure it meets the demanding standards of electrical professionals. The Cushion-Grip™ handle design, precision-machined tips, and heat-treated construction represent Klein's dedication to providing tools that enhance productivity, safety, and reliability for tradesmen across America.



KLN-602-4 - spec sheet

Manufacturer Resources

Spec Sheet

Product Specs

Handle Color:
Black
Insulated:
No
Magnetic:
No
Overall Length:
8.344" (21.2 cm)
Shank Length:
4" (10.2 cm)
Shank Type:
Round
Tip Size:
1/4" (6.4 mm)
Tip Type:
Keystone
Product Type:
Screwdriver
Department:
Electrical
Product Group:
Hand Tools
Product Subgroup:
Screwdrivers & Drivers
Product Height:
1.0170 in
Product Material:
Steel
Product Weight:
0.2500 lbs
Product Width:
2.3670 in
Product Depth:
8.3440 in
Country of Origin:
United States

Klein Tools 602-4 – Frequently Asked Questions

1) Is the Klein 602-4 screwdriver insulated for live electrical work?
No. The Klein Tools 602-4 keystone screwdriver is not insulated, so it isn't rated for work on energized conductors. It's a standard chrome-plated steel driver for switch plates, outlet covers, junction boxes and panel components with the circuit de-energized. If you need to work live, you need a 1000V-rated insulated driver instead, not this one.
2) What size slotted screws does a 1/4-inch keystone tip fit?
The tip measures 1/4 inch (6.4 mm) across and is a keystone shape, meaning the blade flares out rather than tapering to a thin cabinet point. That flare gives more bearing surface in the slot for higher torque, but it will not seat down into a counterbored or recessed hole the way a cabinet-tip driver will. Use it on standard slotted fasteners with a 1/4 inch slot length, like receptacle and switch plate screws and terminal screws on devices.
3) Can I put a wrench on this screwdriver for a seized screw?
Yes. The 602-4 has a hex bolster at the base of the round shank, so you can get an open-end wrench on it and add leverage on a stubborn or painted-over screw without twisting the handle off. Internal flanges anchor the blade inside the Cushion-Grip handle to resist that blade-to-handle separation under high torque.
4) Will this Klein screwdriver hold a screw magnetically?
No, the 602-4 tip is not magnetized. Overhead device work or dropping a screw into a wall cavity is a real risk with it, so if you want a tip that retains the fastener, choose a magnetic-tip driver or add a magnetizer.
5) What is the Klein Tools part number for the 1/4-inch keystone screwdriver with a 4-inch shank?
Order it as Klein Tools 602-4. That is the single model covered here: 1/4 inch keystone tip, 4 inch round shank, black Cushion-Grip handle, chrome-plated steel blade. Weight is 0.25 lbs.
6) Is a keystone tip or a cabinet tip better for electrical panel work?
Keystone is the general-purpose choice and the right one for device screws, cover plates, junction boxes and terminal screws where nothing blocks the sides of the blade. Its flared blade carries more torque. Go to a cabinet tip when the screw sits at the bottom of a counterbore or a recess, because the flare on a keystone catches the sides of the hole. The 602-4 is the keystone version, 1/4 inch tip on a 4 inch round shank.
7) Does this screwdriver meet any tool standard for institutional purchasing?
Klein states the 602-4 meets or exceeds applicable ASME/ANSI specifications for hand screwdrivers, and the tool is made in the USA. That covers the usual spec language on MRO and government tool requisitions. It carries no electrical insulation rating, so it does not satisfy a live-work requirement.
8) Will the chrome finish hold up in a damp mechanical room or outdoor service work?
The blade is heat-treated steel with chrome plating for corrosion resistance, which is what you want in damp plant rooms, crawl spaces and service trucks. Keep it dry in storage; chrome resists rust but the tip is still bare steel where it wears.
How fast can I get the Klein Tools 602-4 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools 602-4 come with a warranty?
Absolutely. The Klein Tools 602-4 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools 602-4?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Klein Tools 602-4 from ZenSupply?
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