M-Series Operator’s Manual 4/9/2015 10-32
Thread / Unit: Number of threads per inch or mm. Used to calculate thread pitch.
Thread Pitch: Thread pitch calculated from threads/unit field. This field cannot be modified.
Thread Type: Specifies right or left hand threads.
Thread Direction: Specifies whether to start at the bottom of the hole and work up or start at the top of the hole and
work down.
Tool Type: Single point or full form threading tool.
Thread Approach: Internal or external thread.
Clearance Amount: Used for external thread milling only. Specifies the diameter of the lead-in arc. Minimum
clearance is 0.050 inches.
Clearance Angle: Used for external thread milling only. Specifies the angle from which the lead in arc will start.
Feedrate: Cutting feed rate.
Surface Height: Absolute Z-axis position from position from where the incremental depth is measured.
Clearance Height: This parameter specifies the Z axis height used when performing rapid moves to the position of each
hole being thread.
'Rapid to' Depth: The depth to which the cutter rapid moves before beginning to thread mill at the specified Plunge
Rate. This is below the Clearance Height but above the Surface Height.
Depth: The total depth of the thread.
Number of Passes: Number of times the thread mill is to be done on the same hole.
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