Beta Tools Copper-Berillium (Cu-Be) Spark-Proof Tools are specifically designed for safe operations in environments subject to potential risk of explosion, in the presence of flammable liquids and gases, or for any applications that require using perfectly antimagnetic, corrosion-resistant tools.All tools are certified by the Federal Institute for Materials Research and Testing (BAM) under European Directive 99/92/EC.Warning! Risk of explosion in ACETYLENE environment. The mechanical characteristics of spark-proof tools differ from those of normal steel tools. They should be used with extreme caution, avoiding overloads..tg {border-collapse:collapse;border-spacing:0;}.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;}.tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;}.tg .tg-5ua9{font-weight:bold;text-align:left}.tg .tg-s268{text-align:left}.tg .tg-0lax{text-align:left;vertical-align:top} Beta Tools - Spark-Proof Single Ring End Spanner / Wrench Range Product Code Part Number Size L Ø S Weight mm mm mm mm g 000890810 89BA 10 10 200 18,0 7,5 104 000890811 89BA 11 11 210 21,0 8,5 127 000890812 89BA 12 12 220 21,5 8,5 129 000890813 89BA 13 13 230 21,5 10,0 140 000890814 89BA 14 14 240 21,5 10,0 153 000890816 89BA 16 16 260 27,0 12,0 210 000890817 89BA 17 17 270 29,5 11,0 210 000890818 89BA 18 18 280 31,5 12,5 300 000890819 89BA 19 19 300 32,0 12,5 300 000890820 89BA 20 20 310 34,0 14,0 370 000890822 89BA 22 22 330 35,0 14,5 380 000890824 89BA 24 24 350 39,0 15,5 410 000890827 89BA 27 27 370 42,5 16,5 550 000890830 89BA 30 30 400 47,0 17,0 550 000890832 89BA 32 32 420 49,5 18,0 750