• U-shaped frame: The most common design is a simple U-shaped frame made from steel or aluminum . This shape provides a stable base for the blade and a comfortable grip for the user.
• Blade pin holes: At each end of the U-shaped frame, there are holes specifically sized for the hacksaw blade pins. These pins hold the blade securely in place.
• Tensioning mechanism: A screw mechanism or thumb nut is located on the frame, usually near the handle. This mechanism is used to tighten a tensioning arm that applies pressure to the blade, keeping it taut and straight while cutting.
• Handle: The hacksaw frame typically has a pistol grip handle on one end for comfortable control while sawing.

The key function of the hacksaw frame is to:

• Hold the blade: The frame securely holds the hacksaw blade in place using the blade pins, allowing you to cut with control.
• Provide tension: The tensioning mechanism allows you to adjust the tightness of the blade. A taut blade ensures clean and efficient cuts.
• Guide the blade: The frame acts as a guide for the blade, keeping it aligned during sawing motions.

Overall, the hacksaw frame is an essential component of a hacksaw. It transforms a loose hacksaw blade into a functional cutting tool suitable for tackling various sawing tasks.