Laser 6789 Ultra thin Open Ended wrench set 4 pc 18x19/20x22/21x23/22X24mm. Set 6789 comprises four spanners in the following sizes and approximate spanner thicknesses: 18mm x 19mm (4.5mm thick); 20mm x 22mm, 21mm x 23mm and 22mm x 24mm (5.5mm thick).
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