Figure 8. Mitering the drawer blade.
SAPFM You appear to be mitering the drawer blade. What are you using the clamped on board for?
DAVIS The clamped on board is a miter shoot board that is clamped onto the drawer blade that has not been fully inserted into the case side. The chisel back lies on the shoot board and shears into the blade to cut the miter that will fit to the case miter.