With holding function (HF) to securely hold the hexagon socket screw on the tool. 454 HF 1 x 3x100; 1 x 4x100; 1 x 5x150; 1 x 6x150; 1 x 8x200; 1 x 10x200mm. 454 1 x 2.5x100 (non-hold function). The ergonomic shape of the handle fills the palm of the hand well, the fingers lie safely in the soft rounded handle recesses.
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