Genuine BlueSpot Tools\nBlueSpot 10pc Micro Combination Spanner Set (4-11mm)\n10 pieces \u00B7 4-11mm \u00B7 Part No 04311\n\nThe Blue Spot Tools 10 PCE Micro Combination Spanner Set (4-11mm) are manufactured from carbon steel, heat-treated and nickel-plated for increased durability. Ideal for tasks where a smaller spanner is suited. The sizes range from 4 to 11mm and the spanners themselves have a thinner profile and shorter length to enable you to reach small spaces.\nKey features\n--Manufactured from carbon steel, heat treated and nickel plated for increased durability\n--Thin profileSpecificationSet contents10 piecesSize range4-11mmMaterialCarbon SteelFinishNickel PlatedPacked dimensions8.5 cm x 18 cm x 1 cmWeight0.12 kgsBarcode (EAN)5028734043112Sizes included4mm4.5mm5mm5.5mm6mm7mm8mm9mm10mm11mmUnderstanding the sizes\nSpanner sizes are measured across the flats of the nut, so a 13mm spanner fits a 13mm fastener. This set covers 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10 and 11mm. A combina.