02/24/2026
Why Micro Tools Break — And How to Prevent It
If you’re running micro end mills, drills, or reamers — this is worth your time.
Miniature tools don’t behave like standard cutters.
Different chip loads. Different rigidity. Different strategy.
In this excellent video, the “Cutting Tool Counselor,” Don Grandt, explains:
• Why micro tools break
• What causes premature failure
• How to adjust feeds & speeds properly
• Practical tips for success in miniature machining
Micromachining is its own discipline — and understanding tooling is critical.
Whether you’re cutting microfluidic channels, precision optics, or biomedical components, this is solid advice.
Credit to Harvey Tool for producing quality technical education like this.
🎥 Watch here:
https://youtu.be/oe5lIkC50Rw?si=nhqesbLsWdzsf2tM
Have you ever broken a miniature tool? The “Cutting Tool Counselor,” Don Grandt is here to help! Miniature cutting tools, such as end mills, drills, and ream...