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    New FAQ October 15 2025

    For section "Metal Cutting in General"
    QUESTION
    What are the advantages of pinpointed coolant supply?
    ANSWER

    Pinpointed coolant supply through a tool’s body, directed precisely to the cutting zone, offers significant benefits. The main advantages are as follows:

    • Enhanced cooling and lubrication effectiveness.
    • Improved chip evacuation.
    • Consequently, pinpointed coolant supply noticeably reduces tool wear and extends tool life. This allows for increased cutting parameters and higher productivity.



    For section "Milling"
    QUESTION
    How to determine whether a milling tool is right-hand or left-hand?
    ANSWER
    To determine this, examine the end of the milling tool that does the cutting. A right-hand (RH) milling tool cuts when it rotates counterclockwise (CCW), while a left-hand (LH) milling tool cuts when it rotates clockwise (CW).
    QUESTION
    How to define the helix hand of a solid endmill with helical flutes?
    ANSWER

    To determine the helix hand, view the endmill from its end that does the cutting. For a right-hand (RH) helix, the flutes spiral outward from the center in a clockwise (CW) direction. For a left-hand (LH) helix, the flutes spiral outward in a counterclockwise (CCW) direction.



    For section "Engineering Materials"
    QUESTION
    What is silicon brass and what is its machinability?
    ANSWER
    Silicon brass is a type of brass that contains silicon (typically up to 6%) to improve strength and resistance to corrosion. The machinability rating of silicon brass is 20–30% lower when compared to free-cutting (leaded) brass. Generally, the machinability of silicon brass is roughly comparable to that of lead-free brass.


    For section "Shop Talk Professional slang"
    WORD
    Primes
    MEANING
    – high-quality metal sheets or plates.
    WORD
    Zero (neutral) geometry of a milling cutter
    MEANING
    –a term that specifies a milling cutter having both radial (side) and axial (back) rakes equal to zero.
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