Micro drills, milling cutters and finishing consumables, made in China Part number lookupWhatsApp +86 135 4924 4890English (EN)
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The table is a production record, not a sales range.

HDC636 — TiN-coated left-hand solid carbide drill

A real production series with 997 standard part numbers. The table below is taken from the geometry we have actually ground and shipped.

Precision cutting-tool production line, general category reference
General reference illustration — not a photograph of a specific part number or product, and not plant documentation. Dimensions, not images, define a specification.
Part numbers in series
997
Diameter span
0.15–3.72 mm
Coating
TiN

What the catalogue commits to

Production capability
Min. diameter 0.15 mm

Typical application

Left-hand drilling for high-speed PCB and precision drilling equipment.

Part numbers in HDC636

HDC636 standard part numbers
Part no.DescriptionD1
mm
Flute
mm
Shank
mm
OAL
mm
PointGeometry
HDC636-1885-01TiN-coated left-hand solid carbide drill1.885123.238118°Standard
HDC636-1890-01TiN-coated left-hand solid carbide drill1.89103.238118°Standard
HDC636-1890-01-02Repeat orderTiN-coated left-hand solid carbide drill1.89123.238118°Standard
HDC636-1891-01-01TiN-coated left-hand solid carbide drill1.89183.238160°Standard
HDC636-1895-01TiN-coated left-hand solid carbide drill1.895123.238118°Standard
HDC636-1895-01-03TiN-coated left-hand solid carbide drill1.895123.238160°Standard
HDC636-1900-01TiN-coated left-hand solid carbide drill1.9103.238118°Standard
HDC636-1900-01-02Repeat orderTiN-coated left-hand solid carbide drill1.9123.238118°Standard
HDC636-1901-01TiN-coated left-hand solid carbide drill1.901123.238118°Standard
HDC636-1902-01TiN-coated left-hand solid carbide drill1.902123.238118°Standard
HDC636-1903-01-01TiN-coated left-hand solid carbide drill1.903123.238118°Standard
HDC636-1903-01-02TiN-coated left-hand solid carbide drill1.90383.238118°Standard
HDC636-1905-01-01TiN-coated left-hand solid carbide drill1.905123.238118°Standard
HDC636-1907-01-01TiN-coated left-hand solid carbide drill1.907123.238138°Standard
HDC636-1910-01Repeat orderTiN-coated left-hand solid carbide drill1.91123.238118°Standard
HDC636-1915-01-01TiN-coated left-hand solid carbide drill1.915123.238118°Standard
HDC636-1920-01TiN-coated left-hand solid carbide drill1.92123.238118°Standard
HDC636-1930-01TiN-coated left-hand solid carbide drill1.93123.238118°Standard
HDC636-1940-01TiN-coated left-hand solid carbide drill1.94123.238118°Standard
HDC636-1950-01Repeat orderTiN-coated left-hand solid carbide drill1.95103.238118°Standard
HDC636-1950-01-01TiN-coated left-hand solid carbide drill1.95123.238118°Standard
HDC636-1960-01TiN-coated left-hand solid carbide drill1.96123.238118°Standard
HDC636-1970-01TiN-coated left-hand solid carbide drill1.97123.238118°Standard
HDC636-1980-01TiN-coated left-hand solid carbide drill1.98123.238118°Standard
How to read a part number. The prefix is the series, the four digits after the first dash encode the cutting diameter in thousandths of a millimetre (for example 1000 is 1.000 mm), and any trailing digits identify the flute or variant. The full geometry is written as D1 × flute length × shank × overall length.