Meets the requirements of Ford.

Product Overview

The Knockout Punch for High-Shear Rivets (Part No. 12-01119) is a specialized pneumatic tooling accessory designed specifically for aircraft maintenance, structural teardowns, and advanced sheet metal repair. Engineered to safely and efficiently drive out stubborn 1/4" high-shear rivets after the manufactured heads have been drilled off, this tool takes the intense manual effort out of heavy airframe disassembly.

Featuring an industry-standard .401 shank, this punch locks seamlessly into standard aviation pneumatic rivet guns and automotive air hammers. At 3-1/2" in length, it provides the ideal balance of reach and control, allowing technicians to precisely punch out rivet shanks without the tool glancing off the fastener or causing collateral damage to the surrounding aluminum skin.

Key Features

• High-Shear Extraction: Purpose-built to efficiently punch out heavy-duty high-shear fasteners, specifically sized for 1/4" diameter rivets.

• Industry Standard .401 Shank: Fits all standard pneumatic rivet guns and air hammers utilizing a .401 shank, ensuring universal compatibility on the shop floor.

• Precision Sizing: The punch tip is carefully machined to clear 1/4" rivet holes without galling, enlarging the hole, or damaging the surrounding aircraft skin.

• 3-1/2" Length: The optimal length for maintaining control of the pneumatic hammer while providing enough reach to access recessed structural rivets.

• Made in the U.S.A.: Manufactured in the United States to strict aviation tooling standards, guaranteeing structural integrity under heavy percussive impact.

Ideal Use Cases & Applications

• Aviation Maintenance: Essential for A&P mechanics performing structural teardowns, skin replacements, or spar repairs involving heavy-duty 1/4" high-shear rivets.

• Airframe Restoration: Highly effective for disassembling vintage military or commercial aircraft where older, high-strength fasteners need to be forcefully removed.

• Heavy Metal Fabrication: Useful for industrial sheet metal workers and custom fabricators who need a reliable pneumatic solution for punching out 1/4" sheared pins or rivets in thick structural assemblies.

Common Questions (FAQs)

Q: Do I need to drill the rivet first?
A: Yes. A knockout punch is designed to drive the shank of the rivet out after the manufactured head has been carefully drilled or sheared off. You should not attempt to punch out a fully intact structural rivet.

Q: Will this fit my standard air hammer?
A: Yes, provided your air hammer or rivet gun accepts a .401 shank. The .401 shank is the universal industry standard for lightweight and medium-duty aviation riveting tools.

Q: Can I use this on smaller 1/8" or 3/16" rivets?
A: No. This specific punch (12-01119) is precisely sized for 1/4" rivets. Using it on a smaller rivet hole will severely damage and enlarge the surrounding metal skin. You must use the appropriately sized punch for smaller fasteners (e.g., Part No. 12-01116 for 1/8" rivets).

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