The _flatter_ is a hammer having one face of its head flat and about
2-1/2 inches square.

_Swages_ are hammers having specially formed faces for finishing
rounds, squares, hexagons, ovals, tapers, etc.

_Fullers_ are hammers having a rounded face, long in one direction.
They are used for spreading metal in one direction only.

The _hardy_ is a form of chisel with a short, square shank which may
be set into the hardie hole for cutting off hot bars.

_Operations._--Blacksmithing consists of bending, drawing or upsetting
with the various hammers, or in punching holes.

Bending is done over the square corners of the anvil if square cornered
bends are desired, or over the horn of the anvil if rounding bends, eyes,
hooks, etc., are wanted.

To bend a ring or eye in the end of a bar, first figure the length of stock
needed by multiplying the diameter of the hole by 31/7, then heat the piece
to a good full red at a point this distance back from the end. Next bend
the iron over at a 90 degree angle (square) at this point. Next, heat the
iron from the bend just made clear to the point and make the eye by laying
the part that was bent square over the horn of the anvil and bending the
extreme tip into part of a circle. Keep pushing the piece farther and
farther over the horn of the anvil, bending it as you go. Do not hammer
directly over the horn of the anvil, but on the side where you are doing
the bending.