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 Double End Flat Ring Spanner Range Product Code Part Number Size L Ø Ø1 S Weight mm mm mm mm mm g 000950801 95BA 7X9 7x9 115 14 17 7 32 TBA 95BA 8X10 8x10 115 14 17 7 32 000950804 95BA 10X11 10x11 140 17 20 8 55 TBA 95BA 10X12 10x12 140 17 20 8 55 TBA 95BA 12X14 12x14 145 20 23 9 70 000950807 95BA 14X17 14x17 165 23 27 10 100 000950809 95BA 16X18 16x18 170 26 29 11 120 TBA 95BA 17X19 17x19 185 27 30 11 132 000950810 95BA 18X19 18x19 185 27 30 11 132 TBA 95BA 19X22 19x22 200 30 35 12 180 000950815 95BA 21X23 21x23 230 35 38 13 240 000950817 95BA 24X27 24x27 255 38 42 14 320 TBA 95BA 30X32 30x32 295 46 49 16 465