Product Overview

The Klein Tools 1224BI 12 in. Hacksaw Blades (100-Pack) is a contractor-grade bulk pack of heavy-duty cutting blades designed for use with standard 12 in. hacksaws. Built from bi-metal construction, these blades combine a flexible steel body with hardened teeth, giving you strength, speed, and durability in demanding cutting jobs.

Each blade is optimized for cutting metal pipe, conduit, threaded rod, PVC, and plastic, making them ideal for electricians, plumbers, maintenance crews, and jobsite tool kits. The blades resist shattering and stay sharper longer than traditional carbon steel blades, even under aggressive use.

This 100-pack ensures you’re always stocked and ready—perfect for high-volume job sites or outfitting multiple toolboxes.

Technical Specs

• Brand: Klein Tools
• Model Number: 1224BI
• Blade Length: 12 inches
• Tooth Type: Bi-metal (hardened teeth + flexible body)
• Pack Quantity: 100 blades
• Applications: Metal, plastic, PVC, conduit, threaded rod
• Compatibility: Fits standard 12 in. hacksaw frames
• Tooth Count: Typically 24 TPI (verify packaging)

What It’s Good For

Great for jobsite pros who need dependable blades that cut fast and don’t break under pressure. Whether you’re trimming conduit, cutting bolts, or resizing pipe, these blades deliver consistency over time—and the bulk pack keeps you covered for months.

Compared to Other Blades

Compared to basic carbon steel blades, Klein’s bi-metal construction offers better longevity, more flexibility under pressure, and less risk of snapping mid-cut. A 100-pack also delivers better value per blade for crews and contractors.

Also Known As

• Klein 1224BI Hacksaw Blade 100-Pack
• 12" Bi-Metal Hacksaw Blades by Klein Tools
• Jobsite Hacksaw Blade Set
• Klein Industrial Hacksaw Refill Blades