Short Tine Fork fully conforms to BS8020:2011 requirement for electrical testing. Tested to 10,000v ac. Each tool supplied with individual and traceable certificate of conformity. Strength greatly exceeds all performance aspects of BS3388. Treaded as standard on all digging tools. Rounded corners to shovel blades to reduce any penetration damage to hidden underground pipes and cables. For use by utility, railway electrical, street lighting contractors, etc.