10/17/2026
A worn-out bit isn’t a polishing bit. It’s a bit that needs replacing.
“I buy blue-band bits and use them for polishing once they wear down. Am I doing it right?”
No. That’s a mistake.
Wear dulls the abrasive grains. It doesn’t turn a medium-grit bit into a fine-grit one. Worn bits work less efficiently and can cause heat, discomfort, and skin damage.
Fine-grit bits designed for delicate skin refinement, smoothing, and polishing have smaller abrasive grains and finer edges from the start. This allows for gentle, precise work. Worn, blunt larger grains cannot replace them.
Choose the grit for the task, not the amount of wear.
Need help choosing the right bit? Send us a DM for a consultation. We’ll help you choose the shape and grit for your work.
Shop KMIZ bits by tapping the Shop icon on Instagram, visiting microburs.com, or searching KMIZ on Amazon.