2-3/4" 18TPI U-Shank Metal High Speed Steel Jig Saw Blades 5PK

What it is:

The 48-42-0120 is a Milwaukee 2-3/4" 18 TPI U-shank jig saw blade set (5-pack) designed specifically for cutting metal.

Key specs:

• Blade length: 2-3/4 inches
• Teeth per inch (TPI): 18
• Material: High-speed steel (HSS)
• Shank type: U-shank (universal fit)
• Quantity: 5 blades
• Application: Metal cutting (steel, sheet metal, etc.)

Key features:

• Designed for metal: Optimized to cut metal over 1/8" thick
• 18 TPI tooth pattern: Fine enough for smoother cuts in metal
• High-speed steel construction: Better heat resistance and durability vs wood blades
• Fast, clean cuts: Tooth geometry improves cutting speed and finish
• Universal U-shank: Fits many jig saw brands

In plain terms:

This is a metal-cutting jigsaw blade, not for wood.

Best for:

• sheet metal
• thin steel plate
• conduit
• light fabrication work

The 18 TPI means:

• finer teeth than wood blades
• smoother cuts
• slower but more controlled cutting

Simple takeaway:

• 48-42-0120 = metal-cutting jig saw blades
• 2-3/4" length, 18 TPI (fine-tooth metal cutting)
• U-shank (older/universal jig saw style)
• 5-pack (standard consumable set)