double jack

double jack

[¦dəb·əl ′jak]
(design engineering)
A heavy hammer, weighing about 10 pounds (4.5 kilograms), requiring the use of both hands.
(mining engineering)
References in periodicals archive ?
A trio of iconic MG Metro 6R4s driven by former double Jack Frost winners and Christmas Stages runner-up Chris Wise and Tracey Taylor-West plus Mark Jasper and Don Whyatt along with Simon Chapman and Michael Calvert are likely to be at the business end of the rally too.
Not to be outdone, Stuart downs six pints of lager, a cherry liqueur, a double Jack Daniels, a bucket of red wine and a triple cheeseburger and chips drenched in mayonnaise.
Maybe a bottle of wine at my house followed by seven pints of Stella, then double Jack Daniel's and Coke, or Southern Comfort and lemonade, maybe 10 doubles and then six shots of Sambuca.
From being a teenager, Steven said he would socialise several times a week and could easily consume up to five double Jack Daniels and five pints of beer on a regular night out - five times more than the NHS recommended daily allowance of three or four units of alcohol a day for men.
Waiter, a double Jack Daniel's on the rocks, please, and a dozen Wellfleet oysters on the half shell.
The incident which put him behind bars started on October 1, after victim Simon Pitt, 21, had eight double Jack Daniels at the local golf club before walking to his home on the base.
WILLS knocked back double Jack Daniel's and Cokes with 150 pals on a pounds 2,000 night out on Thursday at Newcastle upon Tyne's Attic club.
Caroline Hicks, a former barmaid at the Queen's Head, where Hughes had been drinking earlier in the evening, said she served him a double Jack Daniels and Coke.
Caroline Hicks, who was working at the Queen's Head on the night of the accident, said she remembered serving a double vodka and orange, and a double Jack Daniels and Coke, to Hughes' friend at about 9.
Mark Hudson said he had drunk four or five 'After Shocks', a double Jack Daniels and about four or five pints of lager.
John Stone (Skoda Fabia WRC) and the MG Metro 6R4s of double Jack Frost winner Chris Wise, Simon Chapman and Mark Jasper are also on the entry list.
Her friend describes a typical night out: "We start the night with a bottle of wine at my house, fol-lowed by seven pints of Stella, then double Jack Daniel's and Coke or Southern Comfort and lemonade, maybe 10 doubles then six shots of Sambuca.