
■ High helix center drills - JIS Type A center drill for machining 90° center hole. Suitable for soft and relatively tough materials.
Segment:51
| Size Dc × θ ×Ds | Code | Dc (mm) | Ds (mm) | L (mm) | ℓ (mm) | TYPE | MSRP |
| 1× 90゜ × 4 | CEA1.0Q | 1 | 4 | 35.5 | 1.1 | 1 | ¥ 1,490 |
| 1.25× 90゜ × 5 | CEA1.25Q | 1.25 | 5 | 40 | 1.4 | 1 | ¥ 1,240 |
| 1.6× 90゜ × 6.3 | CEA1.6Q | 1.6 | 6.3 | 45 | 1.8 | 1 | ¥ 1,340 |
| 2× 90゜ × 8 | CEA2.0Q | 2 | 8 | 50 | 2.2 | 1 | ¥ 1,800 |
| 2.5× 90゜ × 10 | CEA2.5Q | 2.5 | 10 | 56 | 2.8 | 1 | ¥ 3,290 |
| 3.15× 90゜ × 11.2 | CEA3.15Q | 3.15 | 11.2 | 60 | 3.6 | 1 | ¥ 3,670 |
| 4× 90゜ × 12.5 | CEA4.0Q | 4 | 12.5 | 63 | 4.5 | 1 | ¥ 4,400 |
| 5× 90゜ × 16 | CEA5.0Q | 5 | 16 | 71 | 5.6 | 1 | ¥ 8,510 |
| 6.3× 90゜ × 20 | CEA6.3Q | 6.3 | 20 | 80 | 7.1 | 1 | ¥ 17,300 |
| 8× 90゜ × 25 | CEA8.0Q | 8 | 25 | 100 | 9 | 1 | ¥ 30,200 |
| 10× 90゜ × 31.5 | CEA010Q | 10 | 31.5 | 125 | 11.2 | 1 | ¥ 42,900 |
| 12.5× 90゜ × 35.5 | CEA12.5Q | 12.5 | 35.5 | 140 | 14 | 1 | ¥ 77,500 |