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Material For Spline Cutter

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  • Material For Spline Cutter

    Material choice for a Spline Cutter Guys. I can get M-2 or M-45. Wich would be more durable and perhaps last Longer. Im cutting some pre hardened 4140 and may later do some 4340 also. Thankyou

  • #2
    IMO i'd use whatever is available if cost was similar.
    M45 is better for an interrupted cut, but seat of the pants feel in a home workshop i'd doubt any of us would notice.

    https://en.wikipedia.org/wiki/High-speed_steel

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