Sunluway 24mm Harmonic Balancer / Crank Bolt Impact Socket — Deep 6-Point Counter-Weighted for 1/2" Drive

Sunluway 77070 is a 24mm deep counter-weighted impact socket built to remove GM LS engine crank bolt and harmonic balancer bolts faster and with less slippage. This heavy-duty 24 mm crank bolt socket is designed specifically for GM LS engines and other applications that use a 24 mm hex pulley damper bolt. Manufactured from heat-treated GB 40CR alloy steel and finished for impact use, the tool combines a deep, 6-point engagement with a counter-weighted body to deliver higher effective torque when used with a 1/2" drive impact wrench. It eliminates the need to manually hold the crankshaft during removal and is built to resist rounding and breakage under high load.

How does this socket make removing the harmonic balancer bolt easier?

The Sunluway 24mm harmonic balancer socket fits the crank bolt head precisely and transfers impact energy efficiently to the bolt, reducing slippage. Its deep profile fully captures the bolt, while the counter-weighted design channels momentum for stronger rotational force.

• Deep 6-point contact reduces rounding and improves bite on the bolt head
• Counter-weighted body increases delivered momentum versus standard sockets
• Made for use with 1/2" drive impact wrenches—no crank holding required

What makes this 24mm socket durable enough for impact use?

The 77070 socket is forged from heat-treated GB 40CR alloy steel and finished for impact resistance. Heat treatment increases hardness and toughness so the socket withstands the repeated shocks from impact tools without cracking.

• GB 40CR alloy steel construction for improved toughness
• Heat treatment applied to resist deformation and breakage
• Designed to tolerate the higher stresses of an impact wrench

Will this socket fit my GM LS engine and what other applications work?

This 24 mm socket is intended for GM LS engines and any application that uses a 24 mm hex pulley damper or crank bolt. The 6-point hex engagement makes it suitable for many automotive and mechanical jobs where a secure fit and high torque are required.

• Direct fit for GM LS 24 mm crank pulley/damper bolts
• Useful for other automotive, industrial, and maintenance tasks needing a 24 mm deep socket
• Works with standard 1/2" drive impact tools and ratchets for versatility

How do I use this socket safely and get the best results?

Use the Sunluway 24mm impact socket with a compatible 1/2" drive impact wrench and ensure the tool is fully seated on the bolt before applying power. Apply short bursts from the impact wrench and follow vehicle manufacturer procedures for crankshaft holding and torque when reinstalling parts.

• Seat the socket fully over the bolt head for full 6-point contact
• Use short impact bursts; avoid prolonged full-power application to reduce shock stress
• Inspect socket and bolt for damage before reuse and replace if deformed

Who is this for? This Sunluway 77070 24mm crank bolt socket targets professional mechanics, automotive DIYers working on GM LS engines, and maintenance technicians who need a reliable impact-rated tool for stubborn pulley damper bolts. If you frequently remove harmonic balancers or require a heavy-duty 24 mm deep socket that resists rounding and breakage under impact, this tool supplies focused contact, added momentum and construction built for repeated use. The product includes a 30-day return policy and a 1-year warranty for added purchase confidence.

FAQ

Q: Is this 24mm socket safe to use with an impact wrench?

A: Yes. The Sunluway 77070 is heat-treated GB 40CR alloy steel and designed for 1/2" drive impact wrench use.

Q: Will this fit all GM LS crank bolts?

A: It fits GM LS engines that use a 24 mm hex crank pulley/damper bolt; check your bolt head size before purchase.