I have the Somax plane blade/chisel blade holder. On the side, it instructs you to have the plane blade extend 50mm to hone a thirty degree bevel and 38mm for a 25 degree bevel. I am sure one of you mathematicians can tell me how may mms the blade needs to extend for a thirty five degree bevel. For that matter, what formula do you use to figure out the blade's extension?
The second question I have regards the cental screw that one turns to pull the sides of the jig together and clamp the blade. As I use it, the screw tends to lossen and the blade susequently shifts from its original mms of protrusion. Does anyone have suggestions as to what (if anything) I might put on the threads to make them grip slightly better.
Thanks in advance for any help or suggestions.
Kieran