The Mayhew 3/8″ Hang Tag Pneumatic Bolt Breaker (37315HT) is an essential tool for automotive and mechanical professionals dealing with stubborn or seized fasteners. Engineered to attach directly to an air hammer, this specialized bolt breaker utilizes the power of vibration to effectively loosen frozen bolts, nuts, and even challenging Torx fasteners. Its design incorporates a 3/8″ square drive, making it compatible with a wide range of impact sockets, allowing for precise application of force. Crafted with a black oxide finish, the tool is designed to resist rust, ensuring a longer service life in demanding work environments. Proudly made in the USA, this tool exemplifies quality construction and reliable performance, simplifying what can often be a time-consuming and frustrating task. The inclusion of a 19mm-3/4″ hex on the shaft further enhances its versatility, providing an option for wrench-assisted torque when encountering particularly resistant fasteners. Packaged with a hang tag, this Mayhew Pro Series tool is ready for professional use right out of the box.
KEY FEATURES AND BENEFITS:
- Vibration-Assisted Removal: Effectively breaks loose stubborn and frozen fasteners, including Torx bolts and nuts, by delivering powerful vibration from an air hammer.
- 3/8″ Square Drive: Compatible with standard 3/8″ impact sockets, offering versatility for various fastener sizes.
- Standard .401 Shank: Ensures a secure and proper fit with most standard air hammers.
- Rust Protection: Features a black oxide finish, providing enhanced resistance against corrosion and extending the tool’s lifespan.
- Made in the USA: Guarantees a high standard of manufacturing quality and reliability.
- Wrench-Assisted Leverage: Integrated 19mm-3/4″ hex on the shaft allows for additional turning force with an open-end wrench on extremely tight fasteners.
SPECIFICATIONS:
- Weight: 0.345 lbs.
- Length: 7.05″
- Width: 1.85″
- Height: 1.8″
- Brand: Pro (Mayhew Pro Series)
- Body Type: Round
- Size (Drive): 3/8″
- Body Size (Shank): 0.401
- OAL (Overall Length): 7.05″
- Blade Width: 0.88″
- Packaging: Hang Tag Packaging
- Included: Mayhew 3/8″ Hang Tag Pneumatic Bolt Breaker (37315HT)
HOW TO USE:
- Select the Correct Socket: Choose a 3/8″ drive impact socket that precisely fits the stubborn bolt or nut you intend to remove.
- Attach Socket to Bolt Breaker: Securely attach the selected impact socket onto the 3/8″ square drive end of the Mayhew 37315HT bolt breaker.
- Insert Bolt Breaker into Air Hammer: Insert the .401 shank end of the bolt breaker firmly into the chuck of your pneumatic air hammer. Ensure it is seated properly and locked in place according to your air hammer’s instructions.
- Position Tool: Place the socket firmly onto the fastener you wish to loosen.
- Activate Air Hammer: While maintaining pressure on the tool to keep the socket engaged with the fastener, carefully activate your air hammer. The vibration will begin to break the corrosion or seize that is holding the fastener.
- Apply Rotation (Optional): If the fastener is exceptionally stubborn, you can use a 19mm or 3/4″ open-end wrench on the hex portion of the bolt breaker’s shaft while the air hammer is active to apply additional rotational force.
- Remove Fastener: Continue until the fastener begins to loosen, then remove it using standard methods.
BENEFITS OF USING MAYHEW 3/8″ HANG TAG PNEUMATIC BOLT BREAKER (37315HT):
- Saves time and effort on difficult fastener removal tasks.
- Reduces the risk of stripping or damaging frozen bolts and nuts.
- Minimizes user fatigue compared to manual methods for seized fasteners.
- Extends the life of other tools by not forcing them beyond their limits on stubborn applications.
- Provides a safe and effective solution for common automotive and industrial challenges.
FEATURES:
- Connects to standard .401 turn type Parker shank air guns.
- Incorporates a 3/8-inch square drive for socket compatibility.
- Manufactured with a durable black oxide coating for enhanced rust resistance.
- Designed with a 19mm-3/4″ built-in hex on the shaft for additional leverage with a wrench.
- Packaged with a hang tag for easy display and identification.
- Constructed with quality materials for professional applications.
- Part of the Mayhew Pro series, indicating high-performance design.














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