Frame Claw
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Automated Products International AF300AH 3in Aero Frame Clamp with Stainless Steel Insert & Aluminum Handle
What Is a Frame Claw?
A frame claw is a specialized auto body tool used to grip, hook, and pull damaged structural sections of a vehicle during collision repair and frame straightening operations. Designed to bite into sheet metal, frame rails, sills, and other body structures, frame claws allow technicians to apply focused pulling force through a frame machine or hydraulic system without damaging surrounding panels. They are an essential component of any professional body shop’s toolkit, bridging the gap between raw pulling power and precision metalwork.
Why Frame Claws Matter in Collision Repair
When a vehicle sustains collision damage, its frame, unibody structure, or chassis rails can become bent, twisted, or compressed. Restoring a vehicle to its factory specifications requires more than brute force — it demands controlled, directional pulling at specific attachment points. Frame claws make this possible by creating a secure anchor on the metal, transmitting force exactly where it’s needed.
Without proper clamping and gripping tools, technicians risk slipping, further panel damage, or imprecise pulls that leave a vehicle out of alignment. A quality frame claw grips tighter as pulling force increases, distributing load evenly and reducing the risk of tearing through thin sheet metal. Mo-Clamp frame claws are a prime example of this self-tightening design principle, which has become the gold standard in the industry.
Key Considerations When Choosing a Frame Claw
- Claw profile: Different claw shapes — narrow, wide, single, or double — are suited to different panel configurations. Narrow draw-bar claws work well in tight seams, while wide-mouth designs are better for open flanges.
- Tonnage rating: Match the claw’s rated capacity to your frame machine. Most professional-grade claws are rated for 3, 4, or 5 tons of pulling force.
- Material and heat treatment: Look for claws made from heat-treated steel for maximum durability under repeated high-load use.
- Compatibility: Confirm the claw interfaces correctly with your draw bars, chains, and frame machine anchoring system before purchasing.
- Versatility: Some claws are part of broader clamping ecosystems, allowing them to combine with hooks, adapters, and pull plates for multi-angle corrections.
Top Brands in Frame Claws
Mo-Clamp is the dominant name in this category and with good reason. Founded in 1948, Mo-Clamp pioneered many of the pulling and anchoring solutions that became industry standards in collision repair. The brand is recognized as the originator of the self-tightening clamp, using a patented wedge pulling ring design, and offers claws and hooks built from heat-treated steel engineered for the most demanding shop environments. Whether you’re working a narrow sill, a frame rail, or a complex multi-angle pull, Mo-Clamp produces a claw configuration to match the task.