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High-Speed Drill Bits Metric

Products32
BrandTriumph
Quick answer

Triumph uncoated HSS jobber drills in metric sizes, including 1.20 mm up to 13.00 mm. 118° bright finish, ANSI jobber length. For metric fasteners, tap drilling and metric-spec work.

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Choosing a metric drill bit

These are Triumph's metric drills: uncoated, bright finish, 118° high-speed steel jobber bits to ANSI specification. There are 32 sizes, including 1.20 mm, 1.50 mm, 2.00 mm, 2.50 mm, 3.00 mm and 3.50 mm at the small end, and 10.50 mm, 11.00 mm, 12.00 mm, 12.50 mm and 13.00 mm at the top.

Tap drill and pilot sizes

Metric threads need a specific tap drill. For standard coarse threads, 4.20 mm suits M5, 5.00 mm suits M6 and 8.50 mm suits M10. Always check a tap chart for your thread pitch.

Drill with cutting oil on steel, run slower as size increases, and use a center punch to start the hole. Uncoated bits are a plain, general-purpose choice, and for fractional sizes see the jobber length range.

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Tap drilling metric threads4.20 mm, 5.00 mm and 8.50 mm The tap drill sizes for coarse M5, M6 and M10 threads.
Small holes and pilots1.20 mm to 3.50 mm The small end of the range, for pilot holes and light fasteners.
Fractional or number sizesJobber length drills Inch, number and letter sizes in the standard length.See the range →

Common questions

What size drill for an M6 tap?

5.00 mm is the tap drill for a standard coarse M6 thread, and it is in this range. Confirm against a tap chart if you are cutting a fine pitch.

Are these coated?

No. They are uncoated HSS with a bright finish and a 118° point, to ANSI specification in jobber length.

How many sizes are there?

There are 32 sizes, including 1.20 mm, 2.00 mm, 4.20 mm, 5.00 mm, 6.00 mm, 8.50 mm, 10.50 mm, 12.00 mm and 13.00 mm.

Know-how for High-Speed Drill Bits Metric

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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