Wera 7880 Joker 4XL Self-Setting Insert Spanner (41-55 mm / 1-11/16"-2-1/16", 14x18 mm) – 05020178001

Advanced Performance. Built to Last.

Streamline heavy-duty installations and maintenance with the Wera 7880 Joker 4XL Self-Setting Insert Spanner (05020178001). Designed for torque wrenches with a standard 14x18 mm rectangular drive, this versatile insert spanner automatically adjusts to grip continuous metric and imperial fastener sizes from 41 mm to 55 mm (1 11/16" to 2 1/16"), eliminating the hassle of carrying multiple large, heavy individual insert tools onto the job site.

Featuring parallel, smooth jaws, the Joker 4XL delivers non-damaging contact on surface corners to prevent nut rounding. Its mechanical ratchet function and 30° return angle allow rapid, continuous screwdriving in tight spaces without constantly repositioning the tool.

Key Features & Benefits:

• Self-Setting Jaw Range: Automatically continuously adjusts to fit hexagonal bolt heads and pipe fittings between 41 mm and 55 mm (1 11/16" to 2 1/16").

• Standard 14x18 mm Drive: Securely mounts into all torque wrenches featuring a 14x18 mm rectangular receiver socket.

• Fast Mechanical Ratcheting: Integrated lever mechanism provides smooth, continuous ratcheting action for fast tightening and loosening.

• 30° Small Return Angle: Corner-width rectangular prisms within the mouth structure allow a tight 30-degree return angle, perfect for confined work areas.

• Fastener Corner Protection: Parallel smooth jaws distribute force evenly across the flat faces of the nut rather than the corners to prevent rounding and finish damage.

• Laser-Engraved Torque QR Code: Features a permanent laser QR code on the drive end for instant torque value calculation via smartphone app.

Specifications:

• Part Number / MPN: 05020178001

• EAN / UPC: 4013288237026

• Drive Size: 14x18 mm female rectangular insert mount

• Capacity (Metric): 41 mm – 55 mm

• Capacity (Imperial): 1 11/16" – 2 1/16"

• Total Length: 151 mm

• Tool Weight: 1,000 g (2.2 lbs)

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