Starrett 40099 Bi-metal Power Hacksaw Blade 10 Tpi

Product Description

The STARRETT 40099 is a bi-metal power hacksaw blade designed for use in reciprocating power hacksaw machines. It measures 14 inches in length, 1.125 inches in width, and 0.05 inches thick, with a constant-pitch tooth pattern at 10 teeth per inch (TPI). The bi-metal construction bonds a high-speed steel tooth edge to a flexible alloy steel backing, delivering cutting durability with resistance to blade fatigue and breakage. The toothed edge runs the full cutting length with a consistent 10 TPI pitch, making it well-suited for repetitive stock cutting in shop and field environments. Weighing 0.3 pounds, the blade is a direct-fit replacement for standard power hacksaw applications.

This blade is used in stationary power hacksaw machines common in metalworking shops, fabrication facilities, maintenance departments, and trade service vehicles. The 14-inch length and 1.125-inch width are standard dimensions for many power hacksaw frames. It is suited for cutting mild steel, structural steel, tubing, bar stock, and similar ferrous materials. The 10 TPI pitch handles medium to heavy cross-sections efficiently. Machinists, pipefitters, ironworkers, and maintenance technicians are the primary installers and users of this blade type.

Key Features

• Bi-metal construction: high-speed steel teeth bonded to flexible alloy steel backing for extended blade life
• 10 TPI constant-pitch pattern optimized for medium to heavy ferrous stock cutting
• 14 inches length x 1.125 inches width x 0.05 inches thickness matches standard power hacksaw frame specs
• Pinhole diameter of 0.281 inches for pin-drive power hacksaw compatibility
• Toothed edge along full cutting length for consistent stock removal

Compatibility

Designed as a standard-dimension replacement blade for power hacksaw machines that accept 14-inch bi-metal blades with a 1.125-inch width, 0.05-inch thickness, and 0.281-inch pinhole diameter.

Installation Notes

Power hacksaw blades should be installed by qualified machinists or maintenance technicians familiar with the specific machine model. Power down and de-energize the machine before changing blades. Ensure blade tension is set per the machine manufacturer's specifications and that the pin drive holes are properly seated on the machine's drive pins before operation. Inspect blade set and tooth condition before each use to avoid workpiece damage or blade failure.