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 Bi-Hex Ring Slogging Wrench/Spanner Range Product Code Part Number Size L Ø S Weight mm mm mm mm g 000780817 78BA 17 17 145 32 12 210 000780819 78BA 19 19 145 32 12 200 000780822 78BA 22 22 165 42 14 230 000780824 78BA 24 24 140 40.5 17.5 260 000780827 78BA 27 27 155 45.5 19 360 000780830 78BA 30 30 165 50 20.5 440 000780832 78BA 32 32 180 53.5 23.5 605 000780834 78BA 34 34 192 57 18 640 000780836 78BA 36 36 208 60 20 830 000780838 78BA 38 38 215 60 20 850 000780841 78BA 41 41 225 68 26.5 700 000780846 78BA 46 46 245 72.5 27.5 1300 000780850 78BA 50 50 250 78.5 29 1200 000780855 78BA 55 55 265 84 30 1400 000780860 78BA 60 60 275 92 30 1500 000780865 78BA 65 65 295 100 32 2150 000780870 78BA 70 70 310 106 32 2400 000780875 78BA 75 75 325 113 34 3111 000780880 78BA 80 80 340 119 36 3444