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The CB counter bores are extensively used for recessing bolt and screw heads.
Supplied with a HSS slow spiral drill bit. Fully adjustable, a hex key is supplied.
TCT version is used for plywood, particle boards and plastics (abrasive).
Use a drilling speeds only.
Not suitable for ferrous and non-ferrous metals.
When setting-up, ensure flutes of drill are aligned with flute of counterbore.
| Finish/Coating | Uncoated |
| Tool Type | Counterbore |
| Material | Carbide Tipped |
| Countersink Angle | 90\u00b0 |
| MFR Part No. | CB38-316TC |
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