DS-ACH Holder Series

Designed for precise back machining without Y‑axis capability.

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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