twist drill

noun

Machinery.

twist drill

a drill bit having two helical grooves running from the point along the shank to clear swarf and cuttings

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First recorded in 1870–75

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Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is found that 120 to 130 such holes can be drilled before it is advisable to resharpen the twist drill.

Drills are of two general classes, the flat and the twist drills.

Oh, no, I believe it's mowing machines,—or maybe twist drills—anyhow one of those missionaries from our own little home-paradise of cogs and gears.

Testing Work with Dial Indicator A hole is next drilled in the end of the rod by using a twist drill in the tailstock.

Instead of using an ordinary twist drill, a special hollow drill may be obtained from the Universal Battery Co.

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