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} Beta Tools - Spark-Proof Heavy Duty Pipe Wrench Range Product Code Part Number L Ø (Pipe) Ø S Weight mm max \" max mm mm g 0003630815 363BA 150 150 1/2\" gas 20 16 328 0003630820 363BA 200 200 1\" gas 30 17 420 003630825 363BA 250 250 1\"1/2 gas 49 17.5 890 003630830 363BA 300 300 2\" gas 60 20 1300 003630835 363BA 350 350 2\" gas 60 23.5 1640 003630845 363BA 450 450 2\"1/2 gas 76 26 2700 003630860 363BA 600 600 3\" gas 90 29 4000