Heiniger shaving head size 30 - 0.5 mm

Why choose the #30 instead of the standard #10

Finer and smoother result:

A #30 blade has finer teeth and cuts closer to the skin (0.5 mm) than a #10 (1.5 mm). This creates a "cleaner" finish.

Ideal under attachment combs:

Professionals often use a #30 blade under a clip-on comb. Because the blade is shorter, it glides more smoothly through the coat without catching hair, resulting in fewer lines and a faster, more efficient trim.

Less chance of getting stuck:

For thick or wiry coats (using clip-on combs), a #10 blade is more likely to snag or pull hair. A #30 blade cuts more smoothly and prevents this.