Klein Tools Spring Tool 4-Inch...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.90
$13.04
Klein Tools ST4 4" Cushion-Grip Spring Tool

Klein Tools Spring Tool 4-Inch Cushion Grip C-Tip Motor Brake Installation

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Model: ST4
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$62.90
$13.04
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Klein Tools Spring Tool 4-Inch Cushion Grip C-Tip Motor Brake Installation

Professional-Grade Spring Installation and Removal Tool

The Klein Tools Spring Tool 4-Inch delivers professional-grade spring installation and removal performance for automotive, electrical, and mechanical applications. This cushion-grip spring tool features unique C-tip design engineered for electricians, mechanics, and maintenance professionals, providing the reliable performance and industry-leading quality that tradesmen demand from America's most trusted tool manufacturer.

Professional Features & Benefits

Precision Spring Control

  • Unique C-Tip Design - Prevents spring slippage during installation and removal operations with Klein's precision-engineered tip geometry
  • 4-Inch Working Length - Optimal size for accessing small-diameter coil springs in confined spaces with professional reach and control
  • Small-Diameter Spring Compatibility - Specifically designed for motors, brake shoes, headlights, relays, and solenoid applications with Klein quality precision
  • Recessed Lighting Installation - Perfect for installing recessed can lighting springs with professional electrical contractor efficiency

Ergonomic Comfort and Safety

  • Cushion-Grip Handle - Enhanced comfort during extended use with Klein's ergonomic design reducing hand fatigue and improving control
  • Non-Slip Surface - Secure grip even in oily or wet conditions with Klein's professional-grade handle material and texture
  • Balanced Weight Distribution - Optimal tool balance reduces wrist strain during repetitive spring installation tasks

Technical Specifications

Overall length: 4 inches, cushion-grip handle construction, unique C-tip configuration for spring retention, professional-grade steel construction with Klein's precision manufacturing standards, ergonomic handle design for extended use comfort, corrosion-resistant finish for long-term durability in automotive and electrical environments.

Installation & Usage

  1. Position C-tip against spring coil ensuring secure engagement with Klein's precision-designed tip geometry
  2. Apply steady pressure while compressing or extending spring to desired position using professional technique
  3. Maintain control throughout installation process with cushion-grip handle for optimal safety and precision
  4. Release spring tension gradually while maintaining tool control for safe professional operation
  5. Verify spring proper seating and function after installation following Klein Tools safety protocols
  6. Clean tool after use to maintain Klein quality performance and prevent corrosion in harsh environments

Professional Applications

Ideal for:

  • Automotive Repair - Brake shoe springs, headlight assemblies, and suspension components with professional mechanic precision
  • Electrical Installation - Recessed can lighting springs, relay mechanisms, and electrical component assembly with contractor efficiency
  • Motor Maintenance - Small motor spring replacement and installation in HVAC and industrial equipment applications
  • Solenoid Service - Valve and actuator spring installation in industrial automation and control systems
  • Appliance Repair - Spring mechanisms in household and commercial appliances with professional service quality
  • Electronics Assembly - Precision spring installation in electronic devices and control panels with Klein accuracy
  • Industrial Maintenance - Machinery spring replacement and installation in manufacturing and production environments
  • Telecommunications - Spring-loaded connectors and mechanical assemblies in communication equipment installations

C-Tip Technology Advantage

Klein Tools' unique C-tip design provides superior spring retention compared to standard straight-tip tools, preventing dangerous spring slippage during installation and removal operations. This precision-engineered tip geometry ensures consistent professional results while reducing the risk of spring-related injuries and improving installation efficiency for electrical and mechanical professionals.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has maintained its commitment to manufacturing the highest quality hand tools for professional tradesmen. Each spring tool undergoes rigorous testing to ensure it meets Klein's exacting standards for durability, precision, and safety. The cushion-grip handle and C-tip design represent Klein's dedication to innovation and professional performance, trusted by electricians, mechanics, and maintenance professionals nationwide for reliable spring installation solutions.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Group:
Tool Sets
Product Subgroup:
Tool Kits
Product Type:
Spring Tool

Klein Tools ST4 – Frequently Asked Questions

1) What is the Klein Tools ST4 spring tool actually used for?
The ST4 is a 4-inch hand tool for hooking, stretching, and seating small-diameter coil springs. Typical jobs are recessed can light springs, brake shoe springs, headlight assemblies, relays, solenoids, and small motor springs. The C-shaped tip catches the coil so the spring does not slip off the tip while you are pulling tension on it.
2) Will a C-tip spring tool hold the spring better than a straight-tip or screwdriver-style hook?
That is the whole point of the C-tip. A straight tip lets a coil roll off under tension; the C shape wraps the coil so it stays captured while you stretch or compress the spring. On a recessed light spring or a brake shoe spring under load, that is the difference between seating it and having it launch off the tool.
3) Is the Klein ST4 spring tool long enough to reach into a recessed can housing?
It is a 4-inch tool, so it is sized for short reach in tight spots rather than deep access. That length works well for can light torsion springs at the trim ring and for small springs inside motor and appliance housings, but it is not a long-reach puller for springs set well back in a deep assembly.
4) What is the Klein spring tool part number I should order?
Klein Tools model ST4 is the 4-inch cushion-grip spring tool. There is one configuration, so there is no finish, size, or tip option to pick when you order.
5) Does the ST4 handle stay put with oily or wet hands?
The handle is Klein cushion-grip with a non-slip surface, which is what keeps control when your hands are greasy from brake work or wet from a jobsite. It is a comfort and control handle, not an insulated handle, so treat it as a mechanical tool rather than a live-work tool.
6) Can a maintenance tech use one spring tool for both recessed lighting and brake springs?
Yes, and that is the usual reason an MRO or facilities tech buys the ST4. The same C-tip that seats a recessed can light spring is what electricians, mechanics, and maintenance crews use on brake shoe springs, headlight retainers, and small motor and solenoid springs, so one tool covers electrical and mechanical calls.
How fast can I get the Klein Tools ST4 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 ST4 come with a warranty?
Absolutely. The Klein Tools ST4 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 ST4?
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 ST4 from ZenSupply?
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