Klein Tools Broad Head Bull Pin 3256 1-1/16 Inch Diameter Alloy Steel Alignment Punch (10 Inch Length Forged Heat Treated Wrench Surfaces)

Klein Tools 3256 1-1/16-Inch Body Diameter Forged Alloy Steel Broad-Head Bull Pin

The Klein Tools 3256 is a 1-1/16-inch (1.063") body diameter broad-head bull pin engineered for high-impact structural steel bolt hole alignment and ironwork assembly. Precision forged and heat-treated from heavy-duty alloy steel, this 10.0-inch long, 1.6 lb alignment tool features an enlarged angled head that provides a wider target for sledgehammer impact while resisting mushrooming and chipping. Equipped with a gradual 1/4-inch (0.250") point taper to minimize binding and forged squared shoulders beneath the head for wrench-assisted extraction, this heavy-duty steel erecting punch delivers maximum durability across bridge construction, structural steel framing, and heavy rigging applications.

Best Used For:

• Structural Steel Frame Erection: Driving through overlapping misaligned bolt holes on I-beam flanges and gusset plates to establish exact concentric alignment prior to bolt insertion.
• Bridge & Infrastructure Construction: Aligning thick multi-layer structural steel plates and truss joints using a heavy sledgehammer.
• Releasing Jammed Hardware: Applying an adjustable wrench across the forged squared-off shoulders to break free tightly bound pins without damaging the tool shaft.

Key Performance & Safety Features

• Forged Broad Head Design: Enlarged angled striking face maximizes kinetic energy transfer while reducing chip hazards and target miss rates.
• Forged Squared Wrench Shoulders: Flat parallel surfaces molded below the broad head allow easy wrench placement to twist out jammed alignment pins.
• Long Smooth Point Taper: Uniform transition from the 1/4-inch point to the 1-1/16-inch body diameter minimizes binding and hang-ups during extraction.
• Heat-Treated Alloy Steel Metallurgy: Engineered core toughness resists head mushrooming, shaft bending, and cracking under repeated sledgehammer blows.
• Rust-Resistant Black Finish: Protective surface coating guards the forged alloy body against jobsite moisture, chemical wear, and atmospheric oxidation.

What's Included

• (1) Klein Tools 3256 1-1/16-Inch Broad-Head Bull Pin

Technical Specifications

Pro-Tip: If a bull pin becomes tightly wedged between heavy steel plates during driving, avoid hitting the side of the shaft to free it. Place an adjustable wrench directly onto the forged squared shoulders beneath the head and leverage a rotational twist to break the friction grip smoothly.