Runner 4 : The groove in a plastics injection mould which connects the sprue and the cavity gate. This term also names the plastic piece formed in this channel
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}