EMENTOL ET591 Drive Harmonic Balancer Socket Crank Bolt 1/2 19MM Remova

( Brand: Ementol ), ( Manufacturer Part Number: ET591 ), ( Part Type: Drive Crank ), ( Model Name: Harmonic Balancer Socket ), ( Finish Type: Black Phosphate ), ( Size: 19mm ), ( Drive System: External Hex ), ( Item Length: 19.0 ), ( Material: Chrome Molybdenum Steel ), ( Compatible Fastener Description: 0.5 Inches ), ( Unit Count: 1.0 ), ( Package Dimensions Lxwxh: 3.94x2.44x1.89 Inches ), ( Weight: 1.94 Pounds )

Review EMENTOL 1/2 Inch Drive 19mm Harmonic Balancer Socket Cr mo Heavy Duty Crank Bolt Remova

The **EMENTOL ET591 1/2 Drive 19mm Harmonic Balancer Socket** is a premium-quality, heavy-duty tool designed specifically for the precise and efficient removal and installation of crankshaft bolts and harmonic balancer components in high-performance and production engines. Crafted from **chrome-molybdenum (Cr-Mo) alloy steel**, this socket combines exceptional durability with superior strength, ensuring it can withstand the immense torque and stress encountered during demanding automotive repairs. The **19mm drive size** is optimized for compatibility with most modern crankshaft bolt patterns, making it an indispensable addition to any mechanic s toolkit, whether for routine maintenance or high-performance engine rebuilds. Its **1/2 drive** shank is engineered for seamless integration with standard ratchets, impact wrenches, and breaker bars, providing reliable leverage without slippage or wear. The socket s **deep-cup design** allows for secure engagement with crank bolts that may be partially submerged or obstructed by surrounding engine components, reducing the risk of stripping or damaging threads. Additionally, the **high-carbon, hardened steel face** ensures a tight grip on fasteners, even in tight or difficult-to-reach locations, while the **chrome-plated interior** resists corrosion and galling, prolonging the socket s lifespan under harsh conditions. Whether tackling a stubborn crank bolt in a turbocharged V8 or addressing harmonic balancer issues in a high-revving inline engine, this socket delivers the precision and power required for professional-grade repairs. Built to meet or exceed industry standards, the **EMENTOL ET591** is a trusted choice for mechanics who demand reliability, performance, and longevity in their tools.

### **Pros and Cons of buying a Ementol ET591 1/2 Drive 19mm Harmonic Balancer Socket (CR-Mo Crank Bolt Removal)**

1. **High-Quality Material** The socket is made from **chrome-molybdenum (CR-Mo)**, a durable alloy known for its strength, resistance to wear, and ability to handle high torque without deformation. This makes it suitable for heavy-duty applications like crank bolt removal, where excessive force is often required.

2. **Precision Engineering** The **19mm size** is a standard for harmonic balancer and crank bolt removal, ensuring a proper fit on most engines. The **1/2 drive** is a common size for breakers and impact wrenches, making it versatile for automotive work.

3. **Durability** CR-Mo sockets are less prone to stripping or rounding out compared to standard steel sockets, which is critical when working with stubborn bolts (e.g., seized crank bolts). This can extend the socket s lifespan significantly.

4. **Compatibility with Impact Wrenches** The **1/2 drive** is widely supported by impact wrenches, which are essential for breaking loose seized bolts. This makes the socket ideal for professional and DIY mechanics who frequently deal with stubborn fasteners.

5. **Brand Reputation** Ementol is a well-known brand in the automotive tool industry, offering reliable products for both professionals and enthusiasts. Their sockets are often favored for their balance between cost and performance.

- Removing or installing timing chain covers

- Working on cylinder heads (in some cases)

- Servicing turbochargers or superchargers

7. **Cost-Effective for Heavy-Duty Work** Compared to premium brands like Snap-on or Matco, Ementol provides a **budget-friendly alternative** without sacrificing too much durability, making it a practical choice for mechanics who need reliable tools without high-end pricing.

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1. **Not as Premium as High-End Brands** While CR-Mo is strong, it is not as durable as **chrome vanadium (CV) or nickel-chrome-molybdenum (Ni-Cr-Mo)** alloys used in top-tier sockets (e.g., Snap-on, Matco, or Craftsman Pro). Over time, it may wear faster under extreme conditions (e.g., frequent impact wrench use on extremely seized bolts).

2. **Potential for Rounding** If used improperly (e.g., striking the socket with a hammer instead of the bolt head), the **19mm opening** could round out, rendering the socket unusable. This is a risk with any socket, but CR-Mo is slightly more forgiving than softer materials.

3. **Limited to 1/2 Drive** If you work on vehicles requiring **3/8 drive or 1/4 drive** tools, this socket won t be compatible. However, since 1/2 drive is standard for most crank bolt work, this is less of an issue for automotive applications.

4. **Weight Consideration** CR-Mo sockets are heavier than plastic-coated or chrome-plated ones, which may cause fatigue during prolonged use. However, this is a minor drawback compared to the benefits of durability.

5. **Availability of Alternatives** For professional mechanics, brands like **Snap-on, Matco, or Torq-It** offer even more durable options (e.g., **Torq-It s "Torq-It" sockets** are designed specifically for crank bolt removal with extreme wear resistance). If budget is not a concern, these may be preferable.

6. **Potential for Misalignment** If the socket is not properly seated on the bolt head, it may slip or bind, especially under high torque. This requires careful technique to avoid damaging the bolt or socket.

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The **Ementol ET591 1/2 Drive 19mm CR-Mo Harmonic Balancer Socket** is a **solid, budget-friendly choice** for mechanics who need a **durable socket for crank bolt removal and harmonic balancer work**. Its **chrome-molybdenum construction** provides a good balance between strength and cost, making it suitable for both **DIY enthusiasts and professional mechanics** who don t require the absolute highest-end durability.

However, if you frequently work on **extremely seized bolts** or need **long-term reliability**, investing in a **premium brand s crank bolt socket** (e.g., Torq-It, Snap-on, or Matco) may be worth the extra cost. For most users, this Ementol socket offers **excellent value** without significant drawbacks.

- You need a **reliable, affordable socket** for crank bolt removal.

- You work on **moderately seized bolts** and don t require ultra-premium durability.

- You already own a **1/2 drive impact wrench** and need a specific 19mm socket.

- You re on a **tight budget** but still want a durable tool.

- You frequently work on **extremely seized bolts** that require **maximum torque resistance**.

- You want **longer-lasting sockets** with **higher wear resistance** (e.g., Torq-It or Snap-on).

- You need **multiple sizes** and prefer a **full set** rather than a single socket.

**Final Verdict:** The Ementol ET591 is a **great mid-range option** that delivers **solid performance for its price**, making it a **recommended purchase** for most mechanics who need a **19mm CR-Mo socket for crank bolt work**.

Details:

Set Includes: 1/2 Dr. It comes with 1 year quality. Harmonic Balancer Socket: 19mm, Specially designed for high strength using and with 3 times momentum power of standard impact sockets. 6-point design keeps a tight grip and provides increased torque to loose the most stubborn crank bolts.

All products meet or exceed ANSI performance standards.

specifications mixedtoolsetse:

• brand: Ementol
• mpn: Et591
• part type: Drive Crank
• model name: Harmonic Balancer Socket
• finish type: Black Phosphate
• size: 19mm
• drive system: External Hex
• item length: 19.0
• material: Chrome Molybdenum Steel
• compatible fastener description: 0.5 Inches
• unit count: 1.0
• package dimensions lxwxh: 3.94x2.44x1.89 Inches
• weight: 1.94 Pounds

general mixedtoolsetse:

• condition: New
• Tools Workshop Equipment > Hand Tools > Hand Tool Sets

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• # reviews: 40
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• city: New York, New York

offer mixedtoolsetse:

• started: May 27, 2026
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• availability: In Stock
• quantity: 1

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