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NTK Cutting Tools

DS-ACH Holder Series

Designed for precise back machining without Y‑axis capability.

Home / Front & Back Turning / DS-ACH Holder Series

Wedge mechanism adjusts centerline height of the cutting edge by turning a set screw with a wrench

Eliminates time consuming cutting edge alignment process
Features
  • Range of centerline adjustment: 0 – 0.3 mm 0 – .012”
  • Height adjustment of the cutting edge is done by turning a screw and bending the tip of the holder with a wedge mechanism.
  • Patented holder design improves rigidity, compared to conventional holders, to eliminate vibration.
  • Coolant-through grooving and back turning holder added to the DS holder series.
    The internal coolant supply improves tool wear resistance and chip control.
  • Capable of using Inverted toolholder.
Tooling application
Front turning / Back turning / Grooving / Threading / ID boring
  • ① Turn the screw
  • ② The adjustment wedge goes down
  • ③ By deflection the cutting edge is moved upward
How to use it
The insert moves in an upward direction only.
(Loosen wedge screw before making any adjustments)
① Install the holder slightly below centerline.
Then take a facing test cut. (be sure to loosen the wedge screw)
② Measure the diameter of the center boss.
③ Raise the center height by one half of the diameter of the boss.
Adjustment instruction sheet is supplied in the toolholder case.

④ Re-machine the end face.

Design optimizes vibration resistance
[ Cutting conditions ]
Material : SUS304 304SS
Holder : DS-SDUL19-11-ACH
Insert : TM4 DCGT11T302MCL DCGT32.508MCL TM4
Cutting conditions : Vc = 75 m/min 、f = 0.05 mm/rev、ap = 2.0 mm 250 SFM  .002 IPR  .079” DOC WET
Lineup

DS-PTX-ACH type toolholder

DS-PTX-ACH-OH type toolholder

DS-SCL-ACH type toolholder

DS-SDU-ACH type toolholder

DS-SDU-ACH-OH type toolholder

DS-SVVPN-ACH type toolholder

View reports
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For more information about this product, visit our online e-catalog, or download the catalog/product report

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