Axial or radial? Choosing the driven tool holder orientation

Every driven tool holder answers one question: which direction does the cutter point? The choice is set by the feature on the drawing, then adjusted by what the turret and the neighbouring stations allow.

Mongtec axial (0°) BMT driven tool holder with ER collet chuck

Axial (0°) — face work

Holes and threads parallel to the spindle centreline, end milling on the part face, engraving on the face. On Y-axis machines, off-centre face features too. Browse axial (0°) driven tool holders.

Radial (90°) — cross work

Cross holes, cross tapping, flats, keyways, circumferential slots. Radial holders carry the cutter closer to the turret face, which matters for interference on short parts and large chucks. Browse radial (90°) driven tool holders.

When neither plain type fits

Offset axial shifts the output from the station centre to clear a chuck or tailstock. Retracted radial pulls the cutter back toward the turret for tight interference situations. Double-output types put two cutters in one station — worth considering when stations are the bottleneck. Universal (adjustable) holders cover the feature that is neither 0° nor 90°.

What decides it in practice

  1. The feature direction on the part drawing — non-negotiable.
  2. Interference: chuck diameter, part length, tailstock, neighbouring stations.
  3. The turret interface and its coupling — which holders exist for your machine at all; check your machine model page.
  4. Duty: speed and torque for the operation, and coolant routing.

Send the part feature and the machine model — we propose orientation and article number together →

FAQ

Can I do cross drilling with an axial holder and an attachment?
On a lathe turret, no — the radial holder is the right-angle solution. Choose by feature direction, not by what is already in the drawer.
Are axial and radial holders the same price?
Radial types carry an extra gear stage, so they are usually somewhat higher. The quotation states both when the choice is open.
My machine has a Y axis. Does that change the choice?
A Y axis widens what each orientation can reach (off-centre features), but the feature direction still picks the holder type.

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