● High helix center drills - old JIS Type 2 suitable for soft or relatively tough materials.
Specification

Cutting Speed depending on Materials


Segment:51
|
Size Dc × θ ×Ds |
Code |
Dc (mm) |
Ds (mm) |
D1 (mm) |
L (mm) |
ℓ (mm) |
Dw (mm) |
TYPE |
|
1 × 60゜ × 6 |
CE21.0 |
1 |
6 |
2.5 |
45 |
1.5 |
4 |
1 |
|
1.5 × 60゜ × 8 |
CE21.5 |
1.5 |
8 |
4 |
50 |
2 |
6 |
1 |
|
2 × 60゜ × 10 |
CE22.0 |
2 |
10 |
5 |
55 |
3 |
8 |
1 |
|
2.5 × 60゜ × 12 |
CE22.5 |
2.5 |
12 |
6.5 |
60 |
3.5 |
10 |
1 |
|
3 × 60゜ × 14 |
CE23.0 |
3 |
14 |
8 |
65 |
4 |
12 |
1 |
|
4 × 60゜ × 18 |
CE24.0 |
4 |
18 |
10 |
76 |
5 |
14 |
1 |
|
5 × 60゜ × 22 |
CE25.0 |
5 |
22 |
12 |
88 |
6.5 |
17 |
1 |
|
6 × 60゜ × 25 |
CE26.0 |
6 |
25 |
15 |
100 |
8 |
21 |
1 |
・Machining conditions are calculated based on the workpiece end-face hole size Dw.
・For details on machining conditions, see TECHNICAL INFORMATION, “27. Table of recommend centering condition.”
| แบรนด์สินค้า | YAMAWA |
|---|
