Checkering layout guide is necessary for confident marking of lines under the notch, for drawing notches parallel to the upper line of the forearm, for accurate drawing and repeatability of the notch pattern on both sides of the bed, for marking the edge of the guide lines with the original pattern.
Checkering layout guide is regulated along the entire length of the installation of both the upper and lower notch lines, and the length of the fixed handle is sufficient to reach the other side even through the widest trunk.
Working length of a rod is 77 mm.
Knife projection from 6.5 mm to 48.5 mm
Totally hand made at PETROGRAD factory of joinery and carpentry tools. Made in Russia.