Rust-Resistant 10-Piece Tubular Box Spanner Set. Each spanner features holes on both ends for inserting Tommy bars, providing greater leverage and easier rotation. 8 versatile box spanner sizes: 6 x 7 mm, 8 x 9 mm, 10 x 11 mm, 12 x 13 mm, 14 x 15 mm, 16 x 17 mm, 18 x 19 mm, 20 x 22 mm.
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