Finding and shaping of narrow canals

Endostar K-files are safe instruments with four cutting edges. Traditionally, this group of instruments have been made from stainless steel and they were designed in a shape proposed by Dr Kerr:

• 4 cutting edges,
• made of stainless steel,
• square cross section: ■
• good flexibility,
• safe, noninvasive (not to aggressive),
• ergonomic handle with ISO symbols.