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-1wig{font-weight:bold;text-align:left;vertical-align:top}.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 Offset Ring Spanner Range Product Code Part Number Sizw L Ø Ø1 S S1 Weight mm mm mm mm mm mm g 000900801 90BA 6X7 6x7 122 12 14 7.3 7.3 45 000900802 90BA 8X9 8x9 128 15.4 17 8 8 53 000900803 90BA 10X11 10x11 155 17 20 9 9 80 000900806 90BA 12X13 12x13 175 18.7 20 9 10.3 92 000900808 90BA 14X15 14x15 200 25 26.5 11.3 11.5 170 000900809 90BA 14X17 14x17 220 24 28 11.5 12 185 000900811 90BA 16X17 16x17 230 28 29.5 11.7 11.7 220 000900812 90BA 16X18 16x18 235 25 26.5 12 12 200 000900815 90BA 18X19 18x19 265 29 29.5 14 14 250 000900818 90BA 20X22 20x22 295 33 35 14.5 15.5 350 000900820 90BA 21X23 21x23 298 36 39 15.1 15.1 393 000900821 90BA 22X24 22x24 315 35.5 38.5 16.5 16.5 430 000900822 90BA 24X26 24x26 333 41 43.5 17.4 17.4 505 000900823 90BA 24X27 24x27 340 38.5 38.5 16.5 16.5 560 000900824 90BA 30X32 30x32 395 47 48.5 20 20.5 765 000900826 90BA 34X36 34x36 410 56.5 58.5 25.5 25.5 1095 000900828 90BA 36X41 36x41 450 56 63 22 22 1560 000900829 90BA 41X46 41x46 470 63 70 23 23 1840 000900830 90BA 46X50 46x50 490 70 75 24 24 2314