? Introducing the Push Pull Quick Release Toggle Clamp by POWERTEC? This hand tool clamp is an absolute must for any jig, tool fixture, movable base or woodworking assembly. It features a unique push/pull action that provides a secure hold for your workpiece in a vertical position and serves as a convenient solution to your clamping requirements. Whether you're a professional or DIY enthusiast, you'll find its sturdy design, quick release and heavy duty clamping action to be a valuable asset to your day-to-day applications. ? Holding Capacity: 300 lbs?Premium Design.Our Toggle Clamps are designed with a heavy duty, cold-rolled steel construction for long-term durability. Still, the steel is lightweight, and enhanced with a protective zinc plated coating for anti-rust and corrosion resistant properties. The toggle clamp's straight line bar and smooth clamping stroke allows for optimal holding pressure without slippage. For optimal comfort, they possess red colored vinyl grips that allow for a smooth and safe operation. ? Specs? Clamp base: 3-1/2" x 2-3/16" : Mounting holes: 3/16" spaced 1-3/8" x 1- 1/8" apart : Push rod range (without clamp bolt) from end of base to end of push rod: 11/16" - 2" : Plunger bolt thread size: 5/16-18 by 1-1/4" long : Clamp height, (including handle) when clamped: 3-1/4" : Total length when clamped (without clamp bolt): 5-9/16".