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 Adjustable Wrench Range Product Code Part Number L A A1 S Weight mm max mm mm g 001100810 110BA 100 100 13 39 8.9 33 001100815 110BA 150 150 18 49 12.2 33 001100820 110BA 200 200 24 58 15 275 001100825 110BA 250 250 30 60 18.2 505 001100830 110BA 300 300 36 63 19 770 001100837 110BA 375 375 46 66 24.5 1500 001100845 110BA 450 450 55 120 26.7 2261 001100860 110BA 600 600 65 155 36 4705