Pliers Knipex 90 42 250

The Knipex 90 42 250 pliers are designed for joining metal section sheets used in drywall construction with a lock seam. Constructed from special rolled, oil‑hardened tool steel, these pliers measure 250 mm in length and weigh 676 g. The tool has blue and red handles that provide a secure grip and is built to require minimal hand force thanks to optimized lever transmission.

Advantages

These pliers allow efficient formation of lock seams on U‑ and C‑shaped sections made from sheet metal up to a total thickness of 1.2 mm (2 x 0.6 mm). The special tool steel body ensures durability and long service life, while the lever geometry reduces required hand effort for repetitive joining tasks.

Suitable for

• Joining U‑shaped metal sections in drywall framing
• Joining C‑shaped metal sections in drywall framing
• Forming lock seams on sheet metal up to 1.2 mm total thickness (2 × 0.6 mm)
• General gripping and bending tasks in interior metal framing

Key specifications

• Brand: Knipex
• Model / MPN: 90 42 250
• EAN: 4003773047865
• Length: 250 mm
• Weight: 676 g
• Material: special rolled, oil‑hardened tool steel
• Maximum sheet metal capacity: U‑ and C‑sections up to 1.2 mm total (2 × 0.6 mm)

How to use

Position the pliers so the jaws engage the edges of the U‑ or C‑section where the lock seam is to be formed. Close the handles steadily to fold and join the sheet metal, using the tool’s lever action to minimize manual effort. For best results, make consecutive passes along the seam to achieve a uniform, secure lock seam.

Usage recommendations

Use appropriate personal protective equipment such as gloves and eye protection when working with sheet metal. Inspect the pliers regularly for wear or damage; maintain the tool by keeping it clean and lightly oiled to preserve the hardened steel surface.