DT80 Series
8xD, internal coolant
| Product group | Solid Carbide Drill |
|---|---|
| Diameter range | Ø1 - Ø2.9 |
| Number of flutes (Z) | 2 |
| Coating | AlTiN |
See the product catalogue for dimension tables and order codes. Contact our technical team for special dimensions and tolerances.
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Get a quote for this series
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Dimensions and order codes
Values are taken from the table in the Geppetto product catalogue; dimensions in mm. For a quotation, send the order code and quantity.
Scroll the table sideways ↔
| Order code | d1 m7 | l1 | l2 | l3 | d2 h6 |
|---|---|---|---|---|---|
| DT80-01004-AT | 1 | 50 | 9.5 | 8 | 4 |
| DT80-01104-AT | 1.1 | 50 | 10.45 | 8.8 | 4 |
| DT80-01204-AT | 1.2 | 50 | 11.4 | 9.6 | 4 |
| DT80-01304-AT | 1.3 | 50 | 12.35 | 10.4 | 4 |
| DT80-01404-AT | 1.4 | 50 | 13.3 | 11.2 | 4 |
| DT80-01504-AT | 1.5 | 50 | 14.25 | 12 | 4 |
| DT80-01604-AT | 1.6 | 50 | 15.2 | 12.8 | 4 |
| DT80-01704-AT | 1.7 | 50 | 16.15 | 13.6 | 4 |
| DT80-01804-AT | 1.8 | 50 | 17.1 | 14.4 | 4 |
| DT80-01904-AT | 1.9 | 50 | 18.05 | 15.2 | 4 |
| DT80-02004-AT | 2 | 50 | 19 | 16 | 4 |
| DT80-02104-AT | 2.1 | 50 | 19.95 | 16.8 | 4 |
| DT80-02204-AT | 2.2 | 65 | 20.9 | 17.6 | 4 |
| DT80-02304-AT | 2.3 | 65 | 21.85 | 18.4 | 4 |
| DT80-02404-AT | 2.4 | 65 | 22.8 | 19.2 | 4 |
| DT80-02504-AT | 2.5 | 65 | 23.75 | 20 | 4 |
| DT80-02604-AT | 2.6 | 65 | 24.7 | 20.8 | 4 |
| DT80-02704-AT | 2.7 | 65 | 25.65 | 21.6 | 4 |
| DT80-02804-AT | 2.8 | 65 | 26.6 | 22.4 | 4 |
| DT80-02904-AT | 2.9 | 65 | 27.55 | 23.2 | 4 |
Cutting data, materials and coating
Suitable workpiece materials
- PISO P · Steel
- MISO M · Stainless
- KISO K · Cast iron
- NISO N · Aluminium
- SISO S · Heat-resistant
Coating
AlTiN (high heat resistance)
Recommended cutting data ranges
| ISO group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| P Steel | 10–145 | 0.008–0.44 |
| M Stainless | 25–85 | 0.04–0.38 |
| K Cast iron | 35–90 | 0.06–0.55 |
| N Aluminium | 70–300 | 0.07–0.5 |
| S Heat-resistant | 5–30 | 0.02–0.5 |
Values are starting recommendations; adjust them to machine rigidity, clamping, tool length and coolant.
Frequently asked questions
Which materials is DT80 Series suitable for?
DT80 Series is used in ISO material groups P/M/K/N/S: Steel, Stainless, Cast iron, Aluminium, Heat-resistant.
Which diameters and flute counts does DT80 Series come in?
DT80 Series is available in Ø1 - Ø2.9 with Z2 flutes. Other sizes can be made to drawing.
Which coating does DT80 Series have?
DT80 Series coating: AlTiN (high heat resistance).
What are the recommended cutting speed and feed for DT80 Series?
Geppetto Product Catalogue 2026 (p. 149): ISO P: Vc 10–145 m/min, fn 0.008–0.44 mm/rev; ISO M: Vc 25–85 m/min, fn 0.04–0.38 mm/rev; ISO K: Vc 35–90 m/min, fn 0.06–0.55 mm/rev; ISO N: Vc 70–300 m/min, fn 0.07–0.5 mm/rev; ISO S: Vc 5–30 m/min, fn 0.02–0.5 mm/rev. These are starting values; use the calculator to get spindle speed and feed for your diameter.
Can DT80 Series be reground?
Yes. Geppetto offers CNC regrinding, Drag Finish edge preparation and PVD recoating for carbide end mills, drills and reamers.
