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High-Speed Drill Bits Stubby / Mechanics Length

Products246
BrandsTitan, Triumph and Tru-Cut
Quick answer

Short, stiff 135° high-speed steel twist drills in black oxide and black-and-gold finishes, from Tru-Cut and Triumph with a few Titan. Fraction, number and letter sizes for tight spots, sheet metal and drill press work.

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Choosing a stubby drill bit

Stubby drills, also called mechanics length, are short twist drills in high-speed steel. Less length means less flex, so the bit starts where you point it and holds a straighter line. That makes them the pick for tight spaces, sheet metal and any job where a longer drill would bend or wander.

The range is mostly Tru-Cut and Triumph, with a few Titan, all with a 135° point. Finishes are black oxide or black and gold. Sizes run by fraction, number and letter up to 1/2", and a few have a 1/4" shank.

Drilling tips

Use cutting oil on steel and lower the speed as the diameter goes up. Keep steady pressure so the chips come off in curls, not dust. Mark hard surfaces with a center punch first. If the hole is deeper than the flutes can clear, move up to a jobber length bit.

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Tight spots & sheet metalBlack oxide stubby drills The bulk of the range, from Tru-Cut and Triumph. The short length keeps the bit stiff so it does not skate on thin or curved work.
Tap drills & precise sizesNumber, letter and fraction sizes Fractions up to 1/2" plus number and letter sizes, so you can match the exact hole size for a tap or fit.
Deeper holesStep up to jobber length When the hole is deeper than a stubby flute can clear, a jobber length drill gives you the extra reach.See the range →

Common questions

What is the difference between stubby and jobber drills?

Length. A stubby drill is shorter, so it flexes less and starts more accurately. A jobber drill is longer and reaches deeper. Pick stubby when the hole is shallow or the space is tight.

What point angle do these have?

135°, as the product titles show. A 135° point is commonly used on steel and tougher materials and helps the bit start without skating.

Do I need a pilot hole for the larger sizes?

For sizes near 1/2" a smaller pilot drill first makes the big bit cut easier and keeps the hole on centre. On thin sheet metal you can often go straight in with cutting oil and steady pressure.

Know-how for High-Speed Drill Bits Stubby / Mechanics Length

All guides →
Worker drilling a steel I-beam flange with a cordless drill, metal chips on the beam How to Choose Drill Bits for Metal (and Make Them Last)11 min read Digital caliper measuring a threaded pipe fitting on a wood bench Tap Drill Size Chart and Drill Decimal Equivalents13 min read Drill press cutting into steel with smoke rising from the hot bit Drill Speed Chart: The Right RPM, and Why Heat Kills Bits12 min read

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