Historical clue formulations

• Haulers on runners — 2018-03-24
• Tools used to break concrete — 2015-11-03
• Big busting tools — 2010-04-14
• Arctic transports — 2007-04-05
• Swung tools — 2002-09-06
• Equipment for a work detail — 1997-05-17
• Pounds — 1995-01-15