ø7.00 mm 15D Solid Carbide
Coolant-Thru Drill

At 15× diameter, this drill enters territory typically reserved for gun drills or BTA deep-hole systems — but at a fraction of the setup complexity. Purpose-engineered for crankshaft oil passages, long tie bolts, and heat-exchanger tube sheets. Full-diameter internal coolant delivery is mandatory.

Flute 120.00 mmShank ø8.00 mmOAL 162.00 mm140° PointTiAlN CoatingMOQ 1 pc

Get Pricing & Stock

Reference price

$97.21

Ref. factory price (USD)

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

ø7.00mm 15D Coolant Drill

SKU: SCD-CTD-15D-D700

✓ Factory direct pricing

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

✓ Custom lengths & diameters available

Technical Specifications

Cutter Diameter (D1 h7)ø7.00 mm
Imperial Equivalent0.2756"
Flute Length (L2)120.00 mm
Shank Diameter (D2 h6)ø8.00 mm
Overall Length (L1)162.00 mm
Depth Ratio15D (15× 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

15D Dimensional Drawing

ø7.00mm 15D carbide coolant-thru drill dimensional drawing — L2=120.00mm OAL=162.00mm
D1 h7
ø7.00
L2
120.00
D2 h6
ø8.00
L1
162.00
Point
140°
Ratio
15D

ø7.00mm 15D — recommended applications

  • Automotive fuel-system components
  • Hydraulic manifold ports
  • Gearbox housings
  • General precision engineering
Machining Tip: ø7.00mm represents the sweet spot for coolant-thru drilling — feed rates of 0.15–0.25mm/rev are achievable with correct coolant pressure (20–40 bar).

Recommended Work Materials

42CrMo4 Steel
EN-GJS-500 Ductile Iron
304 Stainless Steel
AlSi10Mg Casting

15×D Ultra-Deep Coolant-Thru Drill

Ultra deep — crankshaft passages, long tie bolts, heat exchangers

15xD deep hole carbide drillcrankshaft oil passage drillultra deep hole drillinggun drill alternative

Ready to Order ø7.00mm 15D Coolant Drills?

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