4" 10TPI U-Shank Wood High Carbon Steel Jig Saw Blades 5PK

What it is:

The 48-42-0640 is a Milwaukee 4" 10 TPI U-shank jig saw blade set (5-pack) designed specifically for cutting wood with corded or cordless jig saws.

Key specs:

• Blade length: 4 inches
• Teeth per inch (TPI): 10
• Material: High carbon steel (HCS)
• Shank type: U-shank (universal tang)
• Quantity: 5 blades per pack
• Application: Wood cutting (softwood & hardwood)

Key features:

• Fast wood cutting: 10 TPI tooth design balances speed and smoothness
• High carbon steel construction: Durable and flexible for wood applications
• Reverse tooth design: Helps reduce splintering on the top surface of cuts
• Universal U-shank fit: Compatible with many jig saw brands
• Heavy-duty build: Designed for professional jobsite use

In plain terms:

This is a basic, general-purpose wood-cutting jigsaw blade.

Best for:

• plywood
• dimensional lumber
• trim work
• general carpentry

The 10 TPI means:

• cuts fairly fast
• leaves a reasonably clean edge
• not as fine as high-TPI finish blades, but more versatile

Simple takeaway:

• 48-42-0640 = wood-cutting jig saw blades
• 4" length, 10 TPI (general-purpose wood cutting)
• U-shank (older/common jig saw style)
• 5-pack (standard consumable set)