Kennedy-Pro: Spak Resistant Socket Set 3/4" Squae DR 14 Piece Al-B Socket Set 1/2 Square Drive Sockets: 10, 11, 12, 14, 17, 19, 22, 24, 27, 30 and 32mm. Accessories: 250mm ratchet wrench, 250mm sliding T-handle, 400mm speed brace, 125 and 250mm socket extensions. Supplied with case and tool control inserts. Spark-resistant tools are used to eliminate the chances of accidental fires or explosions in potentially combustible or explosive environments. They resist the sparks that a standard tool could potentially create when striking hard surfaces. The use of spark resistant tools is essential in many industrial applications such as petroleum and chemical manufacturing, spray booth operations, the marine industry, the mining industry, the paper industries, or any location where flammable vapours or combustible residues are present. Aluminium-bronze spark resistant safety tools are manufactured to 25HRC and offer a breaking strain of 75 - 85kgf/mm2. Spark-resistant tools must be maintained