Block plane recommendation
The 60 1/2 has a 12 degree bed, same as the 102. The 12 degree bed with a 25 degree bevel on the blade leaves a 37 degree attack angle, a block plane with a 20 degree bedding angle and 25 degrees on the blade leaves a 45 degree attack angle, the same angle as your standard bench plane. All the Lie-Nielsen block planes are now low angle. They once made a 103 that was identical to the 102 except a 20 degree bed angle.
I know itís confusing, when the blade is used bevel up, the angle of attack is determined by adding the bevel angle to the bedding angle.
With the traditional non-low angle bench planes the angle of attack is determined by the angle of the frog (bedding angle) since the blade is used bevel down, and the back side of the blade does the cutting. With the standard 45 degree frog it doesnít matter what the bevel angle on the blade is (within reason).
Last edited by Terry Q; 05-24-2020 at 11:41 PM.