STANDARD DIMENSIONS
Carbide Center Drill Sizes
Review the standard dimensions for PRONIXT coated center drills for steel and uncoated center drills for aluminum in 60°, 90° and 120° point-angle options.
CDS · NACO4 COATED
Coated Center Drills for Steel
Accurate Spotting in Ferrous Materials
For accurate hole starting and spot drilling in cast iron, stainless steel and steel up to HRC 40, with 60°, 90° and 120° point options.
Standard Dimensions
Select the order number that matches the required cutting diameter, point angle, shank diameter and overall length.
| Order No. | Ød | A° | ØD | OAL | Flutes |
|---|---|---|---|---|---|
| 55-CDS-2.0-50-60°-2F | 2 | 60° | 4 | 50 | 2 |
| 55-CDS-3.0-50-60°-2F | 3 | 60° | 4 | 50 | 2 |
| 55-CDS-4.0-50-60°-2F | 4 | 60° | 4 | 50 | 2 |
| 55-CDS-5.0-50-60°-2F | 5 | 60° | 5 | 50 | 2 |
| 55-CDS-6.0-50-60°-2F | 6 | 60° | 6 | 50 | 2 |
| 55-CDS-8.0-60-60°-2F | 8 | 60° | 8 | 60 | 2 |
| 55-CDS-10-75-60°-2F | 10 | 60° | 10 | 75 | 2 |
| 55-CDS-12-75-60°-2F | 12 | 60° | 12 | 75 | 2 |
| 55-CDS-4.0-50-90°-2F | 4 | 90° | 4 | 50 | 2 |
| 55-CDS-6.0-50-90°-2F | 6 | 90° | 6 | 50 | 2 |
| 55-CDS-8.0-60-90°-2F | 8 | 90° | 8 | 60 | 2 |
| 55-CDS-10-75-90°-2F | 10 | 90° | 10 | 75 | 2 |
| 55-CDS-12-75-90°-2F | 12 | 90° | 12 | 75 | 2 |
| 55-CDS-4.0-50-120°-2F | 4 | 120° | 4 | 50 | 2 |
| 55-CDS-6.0-50-120°-2F | 6 | 120° | 6 | 50 | 2 |
| 55-CDS-8.0-60-120°-2F | 8 | 120° | 8 | 60 | 2 |
| 55-CDS-10-75-120°-2F | 10 | 120° | 10 | 75 | 2 |
| 55-CDS-12-75-120°-2F | 12 | 120° | 12 | 75 | 2 |
CDL · UNCOATED ALUMINUM
Uncoated Center Drills for Aluminum
Clean Hole Starting in Non-Ferrous Materials
For smooth hole starting with reduced burrs in aluminum, acrylic and copper, with 60°, 90° and 120° point options.
Standard Dimensions
Select the order number that matches the required cutting diameter, point angle, shank diameter and overall length.
| Order No. | Ød | A° | ØD | OAL | Flutes |
|---|---|---|---|---|---|
| 55-CDL-2.0-50-60°-2F | 2 | 60° | 4 | 50 | 2 |
| 55-CDL-3.0-50-60°-2F | 3 | 60° | 4 | 50 | 2 |
| 55-CDL-4.0-50-60°-2F | 4 | 60° | 4 | 50 | 2 |
| 55-CDL-5.0-50-60°-2F | 5 | 60° | 5 | 50 | 2 |
| 55-CDL-6.0-50-60°-2F | 6 | 60° | 6 | 50 | 2 |
| 55-CDL-8.0-60-60°-2F | 8 | 60° | 8 | 60 | 2 |
| 55-CDL-10-75-60°-2F | 10 | 60° | 10 | 75 | 2 |
| 55-CDL-12-75-60°-2F | 12 | 60° | 12 | 75 | 2 |
| 55-CDL-4.0-50-90°-2F | 4 | 90° | 4 | 50 | 2 |
| 55-CDL-6.0-50-90°-2F | 6 | 90° | 6 | 50 | 2 |
| 55-CDL-8.0-60-90°-2F | 8 | 90° | 8 | 60 | 2 |
| 55-CDL-10-75-90°-2F | 10 | 90° | 10 | 75 | 2 |
| 55-CDL-12-75-90°-2F | 12 | 90° | 12 | 75 | 2 |
| 55-CDL-4.0-50-120°-2F | 4 | 120° | 4 | 50 | 2 |
| 55-CDL-6.0-50-120°-2F | 6 | 120° | 6 | 50 | 2 |
| 55-CDL-8.0-60-120°-2F | 8 | 120° | 8 | 60 | 2 |
| 55-CDL-10-75-120°-2F | 10 | 120° | 10 | 75 | 2 |
| 55-CDL-12-75-120°-2F | 12 | 120° | 12 | 75 | 2 |
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