Okazaki Seiko
Okazaki Seiko CBS Counterbores With Straight Shank

Products Made In Japan
Manufacturer: Okazaki Seiko
Model: CBS

Counterboring for hexagonal socket bolts
TiN coated
Specification

(mm)
| Product No. | Size | |||||||
|---|---|---|---|---|---|---|---|---|
| Nominal Size | Cutting Diameter (D₂) | Shank Diameter (d) | Guide Diameter (D₁) | Guide Length (ℓ₁) | Blade Length (ℓ₂) | Shank Length (ℓ₃) | Overall Length (L) | |
| CBS03 | 3 | 5.9 | 6 | 3.2 | 3 | 7 | 27 | 37 |
| CBS04 | 4 | 7.4 | 6 | 4.2 | 4 | 10 | 30 | 44 |
| CBS05 | 5 | 8.9 | 6 | 5.2 | 5 | 13 | 28 | 51 |
| CBS06 | 6 | 10.4 | 6 | 6.2 | 6 | 16 | 32 | 58 |
| CBS08 | 8 | 13.4 | 10 | 8.2 | 8 | 20 | 38 | 67 |
| CBS10 | 10 | 16.8 | 12 | 10.3 | 10 | 26 | 43 | 74 |
| CBS12 | 12 | 18.8 | 12 | 12.4 | 12 | 33 | 46 | 83 |
| CBS14 | 14 | 20.4 | 14 | 14.4 | 14 | 40 | 51 | 90 |
| CBS16 | 16 | 26.0 | 16 | 16.5 | 16 | 48 | 48 | 100 |
| CBS18 | 18 | 28.0 | 16 | 18.5 | 18 | 48 | 48 | 104 |
| CBS20 | 20 | 30.0 | 16 | 21.0 | 21 | 48 | 48 | 109 |
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