03912 Draper Expert Expert HI TORQ Metric Reversible Ratchet Combination Spanner Set, Spanner Wrench Metric Spanner Sets Professional Trade DIY Work Unilock Shank Nails These METALMATE® High Tensile Set DRAPER These METALMATE® High Tensile Set Screws have the following specification: and supplied within a canvas storage bag This gives more grip while transmitting more torque to the nut or bolt and prevents damage to the corners by spreading the load across the flats The Draper Expert HI TORQ metric reversible ratchet combination spanners in this 12 piece set are manufactured from hardened and tempered chrome vanadium steel