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Drill 10 NWKc HSS
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Artykuły Techniczne

Drill 10 NWKc HSS DIN 345

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Net price: €5.79

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Description

DIAMETER Ø10 mm
MORSE TAPER MT1
OVERALL LENGTH 168 mm
FLUTE LENGTH 87 mm

Technical specifications of the Ø10 mm drill bit

Twist drill with Morse taper shank

TECHNICAL DATA
Diameter Ø10 NWKc HSS
Standard DIN 345
Drill type NWKc — twist drill with taper shank
Material HSS (high-speed steel)
Overall length l1 168 mm
Flute length l2 87 mm
Morse taper MT1
Point angle 118°
Diameter tolerance h8
Cutting direction Right-hand

Ø10 mm HSS metal drill bit – Morse taper MT1

Product description and key benefits

The Ø10 mm twist drill with an MT1 taper shank conforming to DIN 345 is a basic tool for any pillar drilling machine. Its cutting geometry with a 118° point angle provides self-centering in soft and medium-hard steels without spot drilling. The Ø10 Morse taper drill is used to produce mounting holes, through holes, and holes for tapping in metalworking shops and maintenance departments.

Key benefits of the Ø10 mm metal drill bit

  • Secure MT1 taper mounting — the self-holding taper conforming to DIN 345 transmits cutting torque without intermediate components — no drill chuck is required
  • HSS steel resistant to temperatures up to 600°C — the cutting edge retains its working hardness at the cutting speeds recommended for structural steels and cast iron
  • Flute length 87 mm — enables drilling through holes in components up to 77 mm thick without extensions
  • Self-centering 118° geometry — eliminates spot drilling on flat surfaces — saves time in batch production
  • Diameter tolerance class h8 — the predrilled hole is ready for reaming to H7 without an additional boring bar pass
  • Full interchangeability according to DIN 345 — identical taper dimensions regardless of manufacturer — the drill can be replaced without adjusting the machine

The Ø10 Morse taper drill bit is most often selected for mounting holes in hollow sections, thick plates, and machine components. In toolrooms, it is used to prepare preliminary holes before reaming to a dowel pin fit. Holes are produced to tolerance class H12 (Ø10.000–Ø10.150 mm); if class H7 is required, additional reaming is necessary.

Morse tapers – dimensions to DIN 228

Dimension table for all Morse tapers MT0–MT6

TaperDiameter D [mm]Length [mm]
MT0 9.045 49.8
MT1 12.065 53.5
MT2 17.780 64.0
MT3 23.825 80.5
MT4 31.267 117.5
MT5 44.399 149.5
MT6 63.348 210.0



REDUCTION SLEEVES COMPATIBLE WITH THE Ø10 MM DRILL BIT:

✓ MT1 → MT2 — for a spindle with an MT2 socket
✓ MT1 → MT3 — for a spindle with an MT3 socket
✓ MT1 drill drift — for removing the drill bit from the spindle

Cutting data for the Ø10 mm drill bit according to ISO 513

Recommended machining conditions for a diameter of Ø10 mm

ISO symbolWorkpiece materialVc [m/min]f [mm/rev]n [rpm]Vf [mm/min]
P Steel Structural steel up to 900 N/mm² 11÷20 0.08 350÷637 28÷51
K Cast iron Gray cast iron GG20–GG30 13÷16 0.08 414÷509 33÷41
N Copper and Al alloys Cu, CuZn, Al, and alloys 25÷28 0.10÷0.12 796÷891 80÷107

Drill sharpening

Sharpen the Ø10 mm drill bit on a tool grinder, maintaining the 118° point angle and cutting edge symmetry. Asymmetric sharpening enlarges the hole diameter and loads the spindle unevenly. Each sharpening reduces the flute length by approximately 1–2 mm.

Material compatibility of the Ø10 mm drill bit

Range of workpiece materials and application limitations

✓ Structural steel (S235, S355) up to 900 N/mm²
✓ Gray and ductile cast iron (GG20, GGG40)
✓ Low-carbon and medium-alloy steel
▲ Stainless steel (Vc reduced by 40%, ample coolant)
▲ Aluminum and Al alloys (emulsion coolant required)
✗ Hardened steels above 45 HRC

Frequently asked questions about the Ø10 mm drill bit

The maximum drilling depth is the flute length l2 = 87 mm minus the drill point length (approximately 3 mm). The effective usable depth is therefore approximately 84 mm.

In S235/S355 structural steels, spot drilling is not necessary — the 118° angle provides self-centering. Spot drilling with an NC 90° drill is recommended when drilling on milled surfaces, castings with machining allowance, or difficult-to-machine materials.

A cooling and lubricating emulsion at a concentration of 5–8% is recommended. For stainless steels, increase the concentration to 8–10%. Cast iron can be drilled dry with compressed air to remove chips.

Product accessories

Morse drift MK1-2

Reference: 0000012383 In stock > 10 items

€3.95

€4.86 brutto

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Drill 10 NWKc HSS DIN 345

Drill 10 NWKc HSS DIN 345

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