Analogs of : KS TOOLS - 450.0491
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KS TOOLS 450.0491 
Substitutes
Substitutes Power Socket
Bolt Head-/Nut Design: Hexagon SocketD1: 51mmDIN/ISO: DIN 3121DIN/ISO: ISO 1174Drive side (profile): RectangleMaterial: Chrome-Molybdenum SteelSpanner Size: 17,0Square Drive Tang Size: 25 (1")mm (inch)Total Length: 145mmWeight: 992g