شفرة منشار (starrett) مصنوعة من معدن مزدوج من الفولاذ عالي القطع بطول (12")

This blade is built for heavy-duty metal cutting. Its bi-metal construction gives longer blade life, the 12-inch length and 18 teeth per inch (TPI) provide a good balance between aggressive cutting and finish, and the high-speed steel edge enhances cutting speed and edge retention. With 13% cobalt content, wear resistance is improved for longer life, while a 10-degree set angle and variable-pitch teeth help reduce noise, vibration, and tooth breakage. It’s well-suited for cutting hardened steel, structural steels, and stainless steels.

The 12-inch blade length determines the working cutting length you can reach in a frame, while 18 TPI indicates a medium-fine tooth spacing that balances fast cutting with smoother finishes on metal.

The 13% cobalt content enhances wear resistance and allows for faster cutting with better edge retention, especially when cutting tougher metals.

Variable-pitch teeth reduce noise and vibration for smoother operation, while the 10-degree set angle helps the teeth stay aligned for fast filing and better resistance to early tooth breakage, increasing blade durability.

It is designed to cut a range of metals, including hardened steel, structural steels, and stainless steels, making it versatile for metal fabrication and repair tasks.

Mount the blade with the teeth facing forward and the cutting edge toward the material. Ensure the blade is tensioned properly in the hacksaw frame and secured firmly to prevent wandering or bending during use.

Keep the blade properly tensioned, cut with steady, even pressure, avoid forcing it, and use appropriate cutting speeds for the material. Let the teeth do the work and avoid twisting or bending the blade, which can cause premature wear or breakage.

Wear eye protection and gloves, clamp your work securely, keep hands away from the cutting area, and use a stable stance. Inspect the blade for damage before use, and replace if any missing teeth or cracks are found.

Compared to other 12-inch bi-metal blades on Fepy, this Starrett blade emphasizes longer life and wear resistance due to its 13% cobalt content and 10-degree set angle with a variable-pitch tooth design. For alternatives, you can check Irwin, Lenox, and Milwaukee 12-inch bi-metal blades on Fepy to compare price, hardness, and tooth geometry. Examples: Irwin 12-inch Bi-Metal Hacksaw Blade 18 TPI (https://fepy.com/product/irwin-12-inch-bi-metal-hacksaw-blade-18-tpi), Lenox 12-inch Bi-Metal Hacksaw Blade 18 TPI (https://fepy.com/product/lenox-12-inch-bi-metal-hacksaw-blade-18-tpi), Milwaukee 12-inch Bi-Metal Hacksaw Blade 18 TPI (https://fepy.com/product/milwaukee-12-inch-bi-metal-hacksaw-blade-18-tpi)

If you’re cutting harder materials or require longer blade life and less frequent blade changes, the bi-metal blade with cobalt content offers greater durability and efficiency. It’s a good choice for frequent metalworking tasks, heavy-duty cutting, and materials that cause more wear on standard carbon-steel blades.

Yes, this 12-inch bi-metal blade is designed to fit most standard hacksaw frames that accept a 12-inch blade and provide proper tensioning for safe, effective cutting.

Use steady, moderate pressure without forcing the blade, maintain proper blade tension, cut with a straight, controlled motion, and avoid twisting or bending the blade. Let the teeth do the work and select the right speed for the material to minimize stress on each tooth.