Mongtec M4106 — VDI20 axial driven tool holder

M4106 is an axial driven (live) tool holder for the VDI20 turret interface, using ER20 collets, rated to 6,000 rpm and 10 Nm. Mongtec Precision is a Taiwanese brand, designed and engineered in Taichung, Taiwan.

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Specification

Article number	M4106
Turret interface	VDI20 — VDI per DIN 69880 (cylindrical shank)
Configuration	Axial Tool Head, Square
Orientation	Axial
Collet system	ER20
Drive ratio	1:1
Max spindle speed	6,000 rpm
Max torque	10 Nm
Brand	Mongtec Precision Inc. — Taiwanese brand, designed and engineered in Taichung, Taiwan

Source: Mongtec VDI & BMT Driven Tools catalogue, Ver 2026.07.

Mongtec driven tool holder, model M3508, with output spindle and ER collet

Mongtec VDI driven tool holder for DIN 69880 turret, ER16 collet

Representative photographs of Mongtec driven tooling in this class — production units, not renderings. Shown as examples of the VDI20 family, not as a photograph of M4106 itself.

What M4106 does on the machine

The driven spindle points along the Z axis, parallel to the lathe spindle. This is the configuration for face drilling, face tapping and end milling on the part face.

Square body — the most rigid of the axial layouts and the usual first choice where turret clearance allows it.

Gear ratio 1:1 — tool spindle speed equals turret drive speed. The direct relationship makes speeds and feeds straightforward to calculate from the machine's live-tool rating.

Do not order against the label alone. “VDI20” fixes the shank per DIN 69880, but pocket depth, clamping system and drive coupling still vary between machine builders. Send Mongtec your machine model and a photograph of the turret face — engineering checks M4106 against the actual turret drawing before anything is quoted. That check is free and takes one email.

Other VDI20 holders in the same configuration

Article no.	Collet	Ratio	Max speed	Torque
M3106	ER16	1:1	6000 rpm	40 Nm
M2106	ER20	1:1	6000 rpm	40 Nm
M2006	ER20	1:1	6000 rpm	10 Nm

Related VDI20 configurations

M5106 — Radial Tool Head, Direct Drive, Right Version
M7106 — Radial Tool Head, Direct Drive, Right Version
M6106 — Radial Tool Head, Direct Drive, Right Version
M3006 — Radial Tool Head, Indirect Drive
M5006 — Radial Tool Head, Direct Drive, Left Version

Frequently asked

What machines does the Mongtec M4106 fit?

M4106 is built for the VDI20 turret interface. Because VDI shank dimensions follow DIN 69880, but turret pocket depth, clamping system and drive coupling still vary between machine builders. Send Mongtec your machine model and a photo of the turret face and engineering confirms the fit before anything is quoted.

What speed and torque can M4106 run?

M4106 is rated to 6,000 rpm with 10 Nm of torque at a 1:1 drive ratio. The usable figure is whichever is lower: this rating or your machine's live-tool drive rating.

What collet does M4106 take?

M4106 takes ER20 collets. Collets and nuts are supplied separately; specify the shank diameters you intend to run and Mongtec quotes the collet set with the holder.

Is a dimensioned drawing available for M4106?

Yes. Mongtec supplies the full dimensioned drawing for M4106 by email once an enquiry is open, so the drawing is matched to your actual machine and turret configuration rather than a generic sheet.

Get M4106 quoted

Send the machine model, the turret station you want to use and the tools you intend to run. Anything you do not know, Mongtec works out from the machine model — an incomplete enquiry is still worth sending. Dimensioned drawings for M4106 are supplied by email once the enquiry is open.

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