Lee Valley Tools Woodworking Newsletter
Vol. 1, Issue 2
January 2007
 
News & Events
 

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.

Veritas® Lapped Plane Blades
Fig. 1

Working Surface Diagram

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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