Overview

The Lincoln Electric KP2100-4B1 is a severe duty contact tip engineered for Innershield MIG welding applications. Manufactured by Lincoln Electric, a leader in welding equipment and consumables, this 5/64" tip comes in a 10-pack and is designed for use with K126 and K345 series welding guns. Contact tips are critical consumable components that maintain consistent wire feed and electrical conductivity during welding operations.

Key Features

• 5/64" (2 mm) wire size for standard MIG applications
• Severe duty construction for extended service life
• 18-thread connection for secure, reliable fit
• Compatible with K126-1, K126-2, and K345-10 welding guns
• 10-pack quantity, individually replaceable
• Manufactured by Lincoln Electric—OEM quality

Technical Specifications

Contact tip dimensions and threading specifications ensure proper installation and performance in MIG welding systems:

• Tip Size: 5/64" (2 mm)
• Length: 5/16" (7.9 mm)
• Wire Size: 5/64"
• Thread: 18 UNC
• Duty Rating: Severe Duty
• Quantity per Pack: 10
• Connection Type: Threaded

Typical Applications

The KP2100-4B1 contact tip is ideal for:

• Innershield MIG welding operations
• Production welding environments requiring frequent tip replacement
• Steel fabrication and structural welding
• Maintenance and repair shops with K126 or K345 guns
• Industrial manufacturing and machine shops

Compatibility & Replacements

Compatible With

• Lincoln Electric K126-1 welding gun
• Lincoln Electric K126-2 welding gun
• Lincoln Electric K345-10 welding gun
• Lincoln Innershield MIG welding systems

Replaces / Drop-In Replacement For

The KP2100-4B1 is the OEM part number for Lincoln Electric 5/64" Innershield contact tips. Verify compatibility with your specific welding gun before ordering to ensure proper fit and performance.

Works With

• Lincoln Innershield wire and gas-shielded MIG welding processes
• Standard MIG gun threading and installation procedures
• Professional welding shops and industrial manufacturing systems