A sampler head attaches the tube to the drill rod, and contains a check valve and pressure vents.
From the en.wikipedia.org
The drill cuttings are removed by injection of compressed air into the hole via the annular area between the innertube and the drill rod.
From the en.wikipedia.org
It took Savage about four minutes to put together the rod and power drill project.
From the denverpost.com
On a recent afternoon, Savage is busy with a 3-foot-long metal rod, a variable-speed drill and red string.
From the lohud.com
On a March afternoon, Savage is busy with a 3-foot-long metal rod, a variable-speed drill and red string.
From the denverpost.com
He said the contractor, who was using a carpenter's drill to install a rod to ground a new electrical panel, suddenly hollered for him to get his family out the building.
From the timesunion.com
As the head of the company, Hayward became a lightning rod for public and political anger after the drill rig operated by BP exploded in the Gulf of Mexico in April.
From the edition.cnn.com
Drill the holes parallel to each other about halfway up the wall and run the dowel rod through them, horizontally.
From the dailyherald.com
The basic gear is a hand auger to drill holes, a skimmer to get the ice chips off the water, a couple of tip-ups and a jigging rod or two with some simple hooks and tackle, and you are all set.