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News & Events |
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We are pleased to announce that our Veritas A2 and O1 plane
blades* are now lapped on the face (non-bevel side). Most would
agree that lapping is an important first step of blade preparation
– it smoothes and trues the non-bevel side of the blade, allowing
you to develop a keen edge when you hone the micro-bevel. The
lapping process can be an arduous task and, depending on the
condition of the blade face, may require a good deal of your
time to achieve an acceptable working surface.
To reduce the time and effort you spend on this activity, we
now lap our Veritas A2 and O1 plane blades* on the face (non-bevel
side) to a flatness tolerance of ±0.0002” or better over
the working surface, and with an average roughness surface finish
of 5 microinches (0.000005”) or better. Because you begin with
a blade that has already been lapped flat, your efforts may
now be focused on providing the final polish to the face and
honing the micro-bevel – tasks that require significantly less
time and effort than lapping the blade face.
 Fig. 1
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Fig. 2 - Lapped working surface on regular and bevel-up
plane blades (left) and on shoulder and bullnose plane
blades (right). |
On our regular and bevel-up plane blades, the working surface
is the section of the face that extends from about 1/8” below
the bottom of the screw slot to the cutting edge; on shoulder
and bullnose plane blades, it is the widest section of the face
from the shoulder to the cutting edge. Average roughness (Ra)
measures the height variations in the surface over a given area
and then provides an average roughness value to represent the
surface finish – the lower the value, the better the finish.
*except Veritas scrub, scraping, router and flush planes,
and all Veritas A2 toothed blades.
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