One Revolution Thread Mill AT-1

The A Brand® AT-1 threadmill is designed with a left-hand helix for a small pitch diameter difference between the hole entry and the bottom of the hole,
allowing a delay in gauge-out failure. Longer tool life can be achieved with elimination of “zero cutting” for correcting bending.
 

Features

     The secret to 1-pass cutting
     Evolution from conventional 2-pass cutting to 1-pass cutting by preventing bending, reducing cutting time.
   

     ● Unequal Spacing / Variable Lead Flute: For reduced vibration
     ● Right-Hand Cut & Left-Hand Helix Geometry: Increases tool stability
     ● EgiAs Coating: For exceptional wear resistance
     ● Ultra-Fine Grain Carbide: For high wear resistance and toughness
 

ADVANTAGES OF USING THREAD MILLS

    ● A single tool cuts various sizes of diameters
       A single tool can cut different threads such as M10 × 1.5, M12 × 1.5, and M16 × 1.5 if their pitch is the same.

    ● Cuts large-diameter threads on low-power machine
       The internal thread effective diameter, which used to be difficult to determine, can now be measured with readable values.   ● Smooth handling of chips to reduce problems
       Thread mills break chips into small pieces and eject them smoothly, ensuring stable, problemfree thread cutting. 
       
  ● High-precision taper pipe threading (no stop marks)
     Airtight threads by having no stop marks.
    

  ● Thread cutting in drill holes with little allowance
     Thread milling cuts the thread closer to the bottom of a hole than tapping, leaving only one incomplete crest of thread