Milwaukee 48-42-2120 Bi-metal Jig Saw Blade 18 Tpi 5 Pack

Product Description

The Milwaukee Electric Tool Corp 48-42-2120 is a bi-metal jig saw blade designed for cutting metal in demanding trade and jobsite applications. Each blade measures 2.75 inches in length and features an 18 teeth per inch (TPI) configuration, optimized for smooth, controlled cuts through sheet metal, conduit, thin-walled tubing, and similar ferrous and non-ferrous materials. The U-shank mount provides broad jig saw compatibility. Sold in a 5-pack, this set suits electricians, plumbers, pipefitters, and general contractors who cycle through blades regularly on metal-cutting tasks.

These blades are intended for use in U-shank compatible jig saws on metal cutting applications. The 18 TPI count is well suited for thinner metal stock where a finer tooth pitch reduces burring and blade deflection. Typical install scenarios include rough-in electrical work, mechanical room fabrication, and light sheet metal trimming. The bi-metal construction combines a high-speed steel tooth edge with a flexible alloy steel body, extending blade life compared to standard carbon steel blades under repetitive cutting loads.

Key Features

• Bi-metal construction for extended blade life on metal cutting applications
• 18 TPI tooth configuration for fine, controlled cuts in thin metal stock
• 2.75-inch blade length suitable for standard jig saw depth capacity
• U-shank mount for broad jig saw tool compatibility
• 5-pack quantity reduces downtime on high-volume cutting tasks

Compatibility

Designed as an OEM-style replacement blade for U-shank compatible jig saws used in metal cutting applications.

Installation Notes

Blade installation and changes should be performed with the jig saw unplugged or battery removed. Ensure the U-shank is fully seated and the blade clamp is secured before operation. Wear appropriate eye and hand protection when cutting metal, as metal filings and blade fragments present injury risk. Follow tool manufacturer guidelines for blade speed settings when cutting metal stock.

Technical Specifications

• Blade Length: 2.75 inches
• Teeth Per Inch (TPI): 18
• Shank Type: U-Shank
• Blade Material: Bi-Metal
• Application: Metal Cutting
• Quantity: 5 pack
• Weight: 1.19 pounds

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 48-42-2120