twist drill
auger bit
dowel drill

The twist drill bit is the type produced in largest quantity today.

Twist drills are designed for boring holes in metal and other hard materials.

Twist drill bits are the most common type of drill bit.

A. The plastic tiles are easily drilled with an ordinary twist drill bit.

Traditional twist drill bits may tend to wander when started on an unprepared surface.

Twist drill bits are available in the widest choice of tooling materials.

The masonry bit shown here is a variation of the twist drill bit.

Use a twist drill and operate the drill slowly.

Next, using a cutting tool or a twist drill bit, make the ten breaks in the copper tracks according to the diagram.

Installer bits are a type of twist drill bit for use with a hand-portable power tool.

Twist drills are sold singly or in sets.

Still, the standard twist drill has a tendency to chew up the surface somewhat as it penetrates into the wood.

They also manufactured milling machines and twist drills.

A special grinding profile that is used to grind milling cutters and twist drills.

Conventional twist drill bits tend to wander when presented to a flat workpiece.

The Morse taper twist drill bits pictured right are used in metalworking.

International Twist Drill on Thursday made a revised offer.

They also invented new tools such as curved saws and twisted drills unknown to other civilizations at the time.

For general tasks, it's best to acquire a number of twist drills (sometimes called Morse drills).

Number and letter gauge drill bits are almost always twist drill bits.

His drill was basically a twist drill, similar to those used to drill wood or metal.

Regular twist drills or straight fluted drills have 2 lands to guide them through the hole.

Long series drill bits are unusually long twist drill bits.

You will need a selection of twist drills for the former, and wood bits in various sizes and patterns for the latter.

Metals are typically isotropic, and an ordinary twist drill bit shears the edges of the hole cleanly.