Magnetic torque limiter 4-569

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The Bernstein 5in1 torque adapter is a manual torque-limiting adapter that converts a 1/4 inch bit and holder into a torque tool with five selectable tightening settings. It provides a visual torque scale and a click-type release when the preset torque is reached.

Key features

• Visual display of torque settings
• Rotate until the scale value is reached to trigger the click
• Tightening torque range: 2.0–6.0 Nm (20.4–61.1 Kgfcm / 17.7–53.1 in-lb)
• Bit magnetic holder: 1/4 inch hexagon (6.35 mm) DIN 3126
• Drive: 1/4 inch hex shank (6.35 mm) DIN 3126
• Adapter diameter: 18 mm
• Adapter length (without shank): 10 mm
• Material: alloyed steel
• Overall length: 68.8 mm
• Weight: 105 g

Area of application
Convert a standard 1/4 inch bit and holder into a handheld torque tool covering five tightening settings from 2.0 to 6.0 Nm. One adapter provides five torque levels and can be clamped between any standard holding tool and a bit. The adapter is intended primarily for manual tightening and is not designed for loosening fasteners.

Technical description
Always return the adapter to the zero scale after use. Adapters are tested to DIN EN ISO 6789 (Hand-operated torque screwdriving tools) and are specified with a tolerance of ±10% for at least 20,000 clicks. Users should periodically verify the torque values using a torque meter.

Characteristics / technical specifications

• Product name: 5in1 torque adapter
• Product number: 4-569
• Tightening torque: 2.0–6.0 Nm (20.4–61.1 Kgfcm / 17.7–53.1 in-lb)
• Bit magnetic holder: 1/4 inch hexagon (6.35 mm) DIN 3126
• Drive: 1/4 inch hex shank (6.35 mm) DIN 3126
• Adapter diameter: 18 mm
• Adapter length (without shank): 10 mm
• Overall length: 68.8 mm
• Material: alloyed steel
• Weight: 105 g
• Tested according to: DIN EN ISO 6789
• Tolerance / durability: ±10% for at least 20,000 clicks
• Intended use: manual operation; not suitable for loosening screw connections; always reset to zero after use; verify torque periodically with a torque meter