Checkering tools from L-series have two sides: left side with teeth, right side - smooth, used as a guide. Between the tool tips, the gap is equal to the pitch. All the cutters are made of steel, underwent a process of hardening and processing, for long and reliable work. The right blade is devoid of teeth, has a sharp and smooth shape, and exactly follows along the guide line. The left blade has teeth and cuts a new groove during the process of notching from right to left. At the same time between the previous line and the new remains empty space - the line width in the usual row. Thus, it is possible to alternate sections with a notch and neat smooth lines of the same width. Such a notch principle is often called "French" or "Scottish."
Totally hand made at PETROGRAD factory of joinery and carpentry tools. Made in Russia.
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