Milwaukee 48-42-5121 3" 18TPI Bi-Metal T-Shank Jig Saw Blades, 5-Pack

Milwaukee 48-42-5121 3" 18TPI T-Shank Metal Cutting Bi-Metal Jig Saw Blades, 5-Pack

The Milwaukee 48-42-5121 Jig Saw Blades deliver reliable, precision cutting performance for metalworking tasks on the job site or in the shop. Each blade measures 3" in overall length with an 18TPI (teeth per inch) tooth configuration, engineered specifically for clean, controlled cuts through metal stock, sheet metal, and tubing. Built with bi-metal construction and a universal T-shank design, these blades resist breakage and hold an edge through repeated cuts, making them a practical choice for fabrication, repair, and maintenance work. Sold in a convenient 5-pack, this set keeps spare blades on hand so professionals and DIYers can keep cutting without interruption or downtime.

Key Features

• Blade Length: 3" overall blade length sized for standard jig saw metal-cutting applications.
• Tooth Count: 18TPI tooth pattern provides a fine, aggressive bite for controlled, clean cuts through metal.
• Shank Type: T-shank design allows for quick, tool-free blade changes and broad compatibility with standard T-shank jig saws.
• Durable Construction: Bi-metal blade construction pairs a flexible spring-steel body with hardened teeth for added durability and resistance to breakage during metal-cutting work.
• Metal Cutting Application: Purpose-built for cutting through metal, making these blades well suited to fabrication, demolition, and repair tasks.
• Flexible Yet Strong: The bi-metal composition balances flexibility with strength, helping the blade withstand side loads and repeated flexing without snapping.
• Pack Quantity: Sold as a 5-pack, giving users spare blades on hand for extended cutting jobs without needing to restock immediately.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Metal Cutting and Fabrication Work
• Sheet Metal and Tubing Cuts
• Maintenance and Repair Jobs
• Jig Saw Metalworking Tasks
• Job Site and Workshop Use
• Renovation and Remodeling Projects

Why Milwaukee?

Milwaukee jig saw blades are built with bi-metal construction and a T-shank design to hold up to demanding metal-cutting applications day after day. The 18TPI tooth configuration on the 48-42-5121 blade is designed to give tradespeople and DIYers consistent, controlled cuts through metal, while the flexible-yet-strong bi-metal body helps resist breakage under load. With a 5-pack quantity keeping replacement blades on hand, Milwaukee delivers dependable cutting accessories built for professional-grade performance and continuous jobsite use.