DIN 6537 Standard Sizes · Coolant-Thru Drill Depth Ratio

15D DIN 6537 Carbide Coolant-Thru Drills

These are German DIN 6537 standard-size coolant-through carbide drills. 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.

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Applications

Crankshaft oil passages · Long tie bolts · Heat-exchanger plates · Deep mould cooling features

Feed-In Method

Use a dedicated pilot hole, low runout holder, and controlled feed-in. Once guided, run steady feed with no dwell.

Pilot Hole

Required. Pilot hole quality controls entry accuracy and tool life at this depth ratio.

Coolant Requirement

Internal coolant at 50-70 bar with stable flow is recommended; verify filtration for small diameters.

15D DIN 6537 SKU Range

Complete 15D DIN 6537 Coolant-Thru Drill Sizes

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

Richiedi preventivo
DIAMETRO TAGLIO (D1) h7LUNGHEZZA SCANALATURA (L2)DIAMETRO CODOLO (D2) h6LUNGHEZZA TOTALE (L1)PricePAGINA SKU
3,000.118155,004,0095,0015,89 €Dettagli
3,500.137855,004,0095,0015,89 €Dettagli
4,000.157571,004,00109,0019,54 €Dettagli
4,500.177293,006,00133,0034,19 €Dettagli
5,000.1969105,006,00145,0037,87 €Dettagli
5,500.2165105,006,00145,0037,87 €Dettagli
6,000.2362110,006,00148,0039,12 €Dettagli
6,500.2559120,007,00162,0049,81 €Dettagli
7,000.2756120,008,00162,0057,79 €Dettagli
7,500.2953137,008,00180,0064,81 €Dettagli
8,000.3150137,008,00180,0064,81 €Dettagli
8,500.3346160,0010,00204,0097,85 €Dettagli
9,000.3543160,0010,00204,0097,85 €Dettagli
9,500.3740175,0010,00221,00106,28 €Dettagli
10,000.3937175,0010,00221,00106,28 €Dettagli
10,500.4134198,0012,00247,00153,43 €Dettagli
11,000.4331198,0012,00247,00153,43 €Dettagli
11,500.4528213,0012,00263,00163,73 €Dettagli
12,000.4724213,0012,00263,00163,73 €Dettagli
12,500.4921248,0014,00297,00247,13 €Dettagli
13,000.5118248,0014,00297,00247,13 €Dettagli
13,500.5315248,0014,00297,00247,13 €Dettagli
14,000.5512248,0014,00297,00247,13 €Dettagli
14,500.5709258,0016,00313,00337,81 €Dettagli
15,000.5906258,0016,00313,00337,81 €Dettagli

Process Notes

What to Confirm Before Running 15D

Feed-In

Use a dedicated pilot hole, low runout holder, and controlled feed-in. Once guided, run steady feed with no dwell.

Pilot Hole

Required. Pilot hole quality controls entry accuracy and tool life at this depth ratio.

Cooling

Internal coolant at 50-70 bar with stable flow is recommended; verify filtration for small diameters.

RFQ Data

Send the drawing, coolant pressure, diameter, depth, material hardness, coating target, and annual demand.

RFQ Checklist

Quote 15D DIN 6537 coolant-thru drills faster

  • Diameter list and quantities
  • Work material and hardness
  • Hole depth, blind/through condition, tolerance
  • Coolant pressure, filtration, machine/toolholder
  • Coating preference and annual quantity
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Other Depth Ratios

3D5D8D12D15D20D25D