Center Drill
( 17 Products Available )According to DIN 333 (Form A) standards, the pilot diameter (d1) and shank diameter (D) remain the same across all lengths. Extra-long center drills (A1 to A5) are available in 150 mm, and they can reach up to 200 mm. The specifications below outline their key dimensions.Standard Dimensions (DIN 333, Form A)
Standard Dimensions (DIN 333, Form A)
| Model (Size) | Pilot Diameter (d1) | Shank Diameter (D) | Overall Length (L) |
|---|---|---|---|
| A1 | 1.0 mm | 3.15 mm | 31.5 mm |
| A2 | 2.0 mm | 5.0 mm | 40.0 mm |
| A3 | 3.15 mm | 8.0 mm | 50.0 mm |
| A4 | 4.0 mm | 10.0 mm | 56.0 mm |
| A5 | 5.0 mm | 12.5 mm | 63.0 mm |
Extra-Length Dimensions (DIN 333, Long Series)
| Model (Size) | Overall Length (L) |
|---|---|
| A1 | 60 mm, 120 mm |
| A2 | 80 mm, 120 mm |
| A3 | 80 mm, 100 mm, 120 mm |
| A4 | 100 mm, 120 mm, 150 mm |
| A5 | 150 mm, 200 mm |
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