Ingersoll Rand 22040943 3-Piece Sign Post Driver | 7 - 3/4" Under Collar Length | 1" x 4 - 1/4" Hex Shank

For roadway maintenance crews, municipal contractors, and sign installation teams using pneumatic pavement breakers, the Ingersoll Rand 22040943 3-Piece Sign Post Driver provides a dedicated attachment for driving suitable sign posts into the ground. Designed with a 1" x 4-1/4" hex shank and a 7-3/4" length under the collar, this assembly transfers repeated impact blows from a compatible pneumatic tool to the post being installed. The hex shank provides the connection to the tool holder, while the under-collar dimension helps identify the attachment's working length and retention configuration. It offers a purpose-specific alternative to using general demolition chisels for sign-post installation.

The 22040943 is supplied as a three-piece assembly consisting of a shank, post block, and 3-1/2" driver. These components form the manufacturer's specified sign-post driving arrangement. With a published weight of 5.25 lbs and a box quantity of 1, the attachment can be selected by its exact shank size and part number when replacing an existing driver or outfitting a compatible breaker. The 1-inch hex configuration distinguishes this model from the smaller 7/8-inch version and the larger 1-1/8-inch and 1-1/4-inch alternatives in the Ingersoll Rand Construction Tool Steels and Accessories range.

Type: 3-Piece Sign Post Driver | Manufacturer: Ingersoll Rand | Part Number: 22040943 | Category: Pavement Breaker and Digger Accessories | Hex Shank: 1" x 4-1/4" | Length Under Collar: 7-3/4" | Driver Size: 3-1/2" | Components: Shank, Post Block, Driver | Catalog Weight: 5.25 lbs | Box Quantity: 1

Features:

• Three-piece assembly includes the shank, post block, and 3-1/2-inch driver identified in the manufacturer's catalog.
• 1-inch by 4-1/4-inch hex shank provides a defined connection geometry for pneumatic tools equipped with the corresponding holder and retention system.
• 7-3/4-inch under-collar length helps distinguish this attachment from accessories with different working lengths.
• Dedicated sign-post driving configuration directs the tool's impact action toward suitable posts rather than general concrete breaking or cutting.
• 5.25 lb catalog weight provides a useful reference when comparing replacement attachments and other shank configurations.
• Box quantity of one identifies the manufacturer's packaging arrangement for this three-piece driver.
• Part of a four-model sign post driver range covering multiple hex-shank sizes for different pneumatic breaker configurations.

Applications:

• Municipal sign installation – driving compatible sign posts during street and public works projects.
• Roadway maintenance – supporting installation and replacement of roadside signage posts.
• Highway construction – positioning sign posts for appropriate traffic-control and infrastructure installations.
• Commercial site improvements – installing suitable posts for parking, directional, and property signage.
• Contractor tool maintenance – replacing a sign post driver assembly on equipment requiring the specified 1-inch hex shank.

FAQs:

• Q: What components are included with the Ingersoll Rand 22040943? A: The manufacturer specifies three components: a shank, post block, and 3-1/2-inch driver. The catalog lists a box quantity of one for the complete three-piece assembly.
• Q: What does the 1" x 4-1/4" hex shank specification mean? A: It identifies a hexagonal tool shank measuring 1 inch across flats and having a 4-1/4-inch shank-length designation. This must match the pneumatic breaker's tool holder and retainer requirements.
• Q: Is the 22040943 interchangeable with the 22040778 sign post driver? A: Both models share the same 7-3/4-inch under-collar length and three-piece driving arrangement. However, the 22040943 uses a 1-inch by 4-1/4-inch hex shank, while the 22040778 uses a 7/8-inch by 3-1/4-inch hex shank. They should not be treated as interchangeable without confirming the tool's shank requirements.
• Q: Does this attachment fit every style of metal sign post? A: The catalog identifies a 3-1/2-inch driver but does not list all compatible post profiles or dimensions. Verify the post's shape and the manufacturer's driving instructions before use.
• Q: Is the 7-3/4-inch measurement the overall assembled length? A: No. Ingersoll Rand specifies this as the length under the collar. The catalog does not provide a complete overall assembly length for this model.

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For help selecting the correct Ingersoll Rand Post Drivers, please call (800) 608-5210 or email info@intlairtool.com