Description
About this item:
- 10 x 5.3mm 180 Degree Counterbore for M5 Screws
- Bright finish HSS-Co5 (Cobalt) for extreme tool life.
- Use to enlarge the top of an existing hole to create a cylindrical-shaped opening with a flat bottom that acts as a seat for the head of a screw or wood plug.
- Ideal for use with standard cap screws or socket head screws.
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