Wera 3950 Stainless Steel Hex Key, 4.0mm X 137mm, 022704

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1. KEY FEATURES: - Wera's proprietary surface contact structure called Hex-Plus prevents damage to the inside of the hexagonal screw hole, contributing to longer screw life. High torque transmission rate also increases work efficiency. - Opposite side dimension (mm): 4.0 Under neck dimension (mm): 24 Overall length (mm): 137 - stainless - SUS tools are not non-magnetic. Full tightening cannot be done at the ball part.

2. PRODUCT DESCRIPTION: Wera's proprietary surface contact structure called Hex-Plus prevents damage to the inside of the hexagonal screw hole, contributing to longer screw life. High torque transmission rate also increases work efficiency.

3. PRODUCT DIMENSIONS & WEIGHT: - Weight: 0.041 kg - Dimensions: 14.6 x 8.5 x 1.7 cm

4. SPECIFICATIONS: - Brand: WERA - Model Number: 05022704001 - Manufacturer: WERA