ø5.00 mm 12D Solid Carbide
Coolant-Thru Drill

Designed for oil galleries, tie-rod holes, and structural deep-hole features in forged and cast components. The 12D ratio requires precise machine setup (low runout, rigid fixturing) but delivers repeatable hole straightness well beyond what conventional drills can achieve. Internal coolant is essential at this depth.

Flute 78.00 mmShank ø6.00 mmOAL 116.00 mm140° PointTiAlN CoatingMOQ 1 pc

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Reference price

$46.44

Ref. factory price (USD)

Based on rod stock cost as of 2026-03-31. Final quotation may differ.

ø5.00mm 12D Coolant Drill

SKU: SCD-CTD-12D-D500

✓ Factory direct pricing

✓ MOQ 1 piece, stock sizes ship 1–5 days

✓ Custom lengths & diameters available

Technical Specifications

Cutter Diameter (D1 h7)ø5.00 mm
Imperial Equivalent0.1969"
Flute Length (L2)78.00 mm
Shank Diameter (D2 h6)ø6.00 mm
Overall Length (L1)116.00 mm
Depth Ratio12D (12× diameter)
Point Angle140°
Helix Angle30°
Number of Flutes2
CoatingTiAlN / TiSiN Oerlikon Balzers BALINIT®
SubstrateK10/K20 Solid Carbide 10% Co binder
CoolantInternal twin-channel
ToleranceDIN 1414 · ISO 5419
MOQ1 piece
Lead Time (standard)1–5 business days
Lead Time (custom)5–15 business days

12D Dimensional Drawing

ø5.00mm 12D carbide coolant-thru drill dimensional drawing — L2=78.00mm OAL=116.00mm
D1 h7
ø5.00
L2
78.00
D2 h6
ø6.00
L1
116.00
Point
140°
Ratio
12D

ø5.00mm 12D — recommended applications

  • Precision electronics housings
  • Medical device components
  • Micro-feature aerospace parts
  • Watch and optical instrument parts
Machining Tip: At ø5.00mm, spindle runout must be below 0.003mm. Use a high-precision collet chuck (ER collet, accuracy class ≤ 5µm) and avoid interrupted cuts.

Recommended Work Materials

6061 Aluminium
Titanium Grade 2
316L Stainless Steel
PEEK / engineering plastics

12×D Extra-Deep Coolant-Thru Drill

Extra deep — oil passages, tie rods, cast and forged components

12xD coolant drilloil gallery drillextra deep hole drillingforged steel deep drill

Ready to Order ø5.00mm 12D Coolant Drills?

Factory direct. MOQ 1 piece. Tell us quantity and delivery date — we'll confirm lead time and pricing within 4 business hours.