Blind nailer

A blind nailer plane, comprising:

• a. a plane body, and, adjustably fixed in the plane body,
• b. a chisel comprising a metal shaft having at the cutting end a substantially rectangular cross section and a cutting edge having a substantially straight central portion and curved ends, which cutting edge is defined by a first bevel extending entirely across one side of the shaft, and on the other side of the shaft:
• (i) a second, centered bevel which intersects the central portion of the first bevel at the cutting edge, and
• (ii) a contour symmetrical about the longitudinal axis of the shaft and curved transverse to that axis so that the contour intersects the first bevel on both sides of the second bevel.

A method for forming a cutting edge on the tip of a chisel, comprising the steps of:

• a. forming a substantially planar first surface on the tip of the chisel at a shallow angle to the longitudinal axis of the shaft,
• b. forming on the side of the shaft opposite the first surface and adjacent to the tip, a contoured surface which is symmetrical about the longitudinal shaft axis, curved transverse to that axis and intersects the first surface;
• and
• c. modifying the contoured surface by forming a centered, substantially planar second surface on the shaft to intersect the first surface at an acute angle.