











Four Cutting Edges Penetrate Hard Materials Rapidly

Four Cutting Edges Penetrate Hard Materials Rapidly

Four Cutting Edges Penetrate Hard Materials Rapidly

Four Cutting Edges Penetrate Hard Materials Rapidly

Four Cutting Edges Penetrate Hard Materials Rapidly


Uniform in Thickness but Very Thin
Double Cut on Sides & Single Cut on Edges


Four Cutting Edges Penetrate Hard Materials Rapidly

Tapers in Width & Thickness
Double Cut on Both Sides & Single Cut on the

Four Cutting Edges Penetrate Hard Materials Rapidly




Tapers in Width & Thickness
Double Cut on Both Sides & Single Cut on the



The File Tapers toward the Point in Width
Half Round on the One Side & Flat on the

Double Cut on Both Sides
With Back Safe (Uncut)

Cut on Knife Side & Knife Blade Shaped
Double Cut on Both Sides

The File Tapers toward the Point in Width
Both Sides are Double Cut





Four Cutting Edges Penetrate Hard Materials Rapidly


Four Cutting Edges Penetrate Hard Materials Rapidly

Four Cutting Edges Penetrate Hard Materials Rapidly

Four Cutting Edges Penetrate Hard Materials Rapidly

Double Cut on Both Sides & Single Cut on the
Tapers in Width & Thickness