Non-PRO English to Romanian Tech/Engineering Engineering (general)

Poate cineva sa ma ajute cu denumirea in romana a aparatului?
Am gasit urmatoarea explicatie in legatura cu "scoring blade"
"A scoring blade is a small blade located in front of the main blade. It cuts a kerf slightly wider than the main blade and is installed so the teeth point backwards and it counter-rotates, or turns the opposite way. It is set very low, just low enough to nick, or score, the bottom surface of the material being cut. It counter-rotates to ensure a clean cut on the bottom edge of the plywood – the face of the plywood is supported by the core so there is no tearout. Of course, having a blade rotating in the wrong direction, trying to pull the stock forward could be very dangerous in theory. However, because the blade is taking such a light cut, the weight of the material it is cutting is enough to keep the scoring blade from pulling it forward"