Punta in metallo duro ø7.50 mm 20D
Punta con refrigerazione interna

The 20D coolant-thru drill replaces two-step gun-drilling in many automotive and power-generation applications. Suitable for hardened steel (up to HRC 40) and nickel alloys when combined with the correct Balzers PVD coating. Machine spindle runout must be within 0.005mm for consistent tool life.

Scanalatura 184,00 mmCodolo ø8,00 mmLunghezza totale 222,00 mmPunta 140°Rivestimento TiAlNMOQ 1 pz

Richiedi prezzo e disponibilità

Prezzo di riferimento

82,43 €

Prezzo fabbrica rif. (EUR)

Basato sul costo barra al 2026-07-10. Il preventivo finale può variare.

ø7.50mm 20D Coolant Drill

SKU: SCD-CTD-20D-D750

✓ Prezzo diretto di fabbrica

✓ MOQ 1 pezzo, misure stock in 1–5 giorni

✓ Lunghezze e diametri speciali disponibili

Specifiche tecniche

Diametro taglio (D1 h7)ø7,50 mm
Equivalente imperiale0.2953"
Lunghezza scanalatura (L2)184,00 mm
Diametro codolo (D2 h6)ø8,00 mm
Lunghezza totale (L1)222,00 mm
Rapporto profondità20D (20× diameter)
Angolo punta140°
Angolo elica30°
Numero taglienti2
RivestimentoTiAlN / TiSiN Oerlikon Balzers BALINIT®
SubstratoK10/K20 Solid Carbide 10% Co binder
RefrigerazioneInternal twin-channel
TolleranzaDIN 1414 · ISO 5419
MOQ1 pezzo
Tempo standard1–5 giorni lavorativi
Tempo speciale5–15 giorni lavorativi

20D Dimensional Drawing

D1 h7
ø7,50
L2
184,00
D2 h6
ø8,00
L1
222,00
Point
140°
Ratio
20D

ø7.50mm 20D — recommended applications

  • Automotive fuel-system components
  • Hydraulic manifold ports
  • Gearbox housings
  • General precision engineering
Consiglio di lavorazione: ø7.50mm 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).

Materiali consigliati

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

20×D Precision Deep-Hole Coolant-Thru Drill

Precision deep hole — hardened steel, nickel alloys, power generation

20xD carbide drillhardened steel deep holepower generation drillingprecision deep hole drill

ø7,50 mm Also Available In

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