N4 Bit for checkeringhave two tips. The right side is serrated, the left is smooth, used as a guide. The left blade is free from teeth, sharp and smooth, and follows the guideline precisely. The right blade is serrated and cuts a new groove during the notching process from left to right. This way, you can make a notch using the previous groove as you guide. The Bit for checkering are hardened to 59HRC.
Production - factory of joinery and carpentry tools PETROGRAD.
Made in Russia
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