chopping bit

[′chäp·iŋ ‚bit]

(mechanical engineering)

A steel bit with a chisel-shaped cutting edge, attached to a string of drill rods to break up, by impact, boulders, hardpan, and a lost core in a drill hole. Also known as chisel bit.

References in periodicals archive ?

But a bloke dressed in chainmail chopping bits of wood?

Britain's got bored

I wish surgeons had abandoned slicing into human brains and chopping bits out.

Dr Vernon's Casebook: My scruffy hubby thinks I should still fancy him

The blood used to be there but they had to change the floor because so many people kept chopping bits out for souvenirs.

Holyrood high; Tote Conte took her daughters Sylvia, nine, and Evelyn, six, on a trip to the Palace of Holyroodhouse in Edinburgh

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