Product Information
- An essential hardware tool for industrial.
- High speed steel, high quality and durable.
- The counterbore set works great in counter bored hole.
- It includes 7 sizes in one counterbore set(m3, m4, m5, m6, m8, m10, m12).
- Apply to cast iron, steel, copper, aluminum, conventional hardness of stainless steel and die steel, etc.
