Mongtec M9126 — VDI40 driven driven tool holder

M9126 is a driven driven (live) tool holder for the VDI40 turret interface, using ER32 collets, rated to 5,000 rpm and 70 Nm. Mongtec Precision is a Taiwanese brand, designed and engineered in Taichung, Taiwan.

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Specification

Article number	M9126
Turret interface	VDI40 — VDI per DIN 69880 (cylindrical shank)
Configuration	VDI Driven Tool Holders
Orientation	Driven
Collet system	ER32
Drive ratio	1:1
Max spindle speed	5,000 rpm
Max torque	70 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 showing turret drive shank and output spindle

Range of Mongtec compact driven tool holders for CNC lathe turrets

Representative photographs of Mongtec driven tooling in this class — production units, not renderings. Shown as examples of the VDI40 family, not as a photograph of M9126 itself.

What M9126 does on the machine

A driven (live) tool holder that takes rotary drive from the turret.

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. “VDI40” 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 M9126 against the actual turret drawing before anything is quoted. That check is free and takes one email.

Machines with a VDI40 turret

Mongtec publishes tooling pages for these machines with a declared VDI40 turret. Confirming your model here does not confirm M9126 as the article number — that still comes from engineering.

Other VDI40 holders in the same configuration

Article no.	Collet	Ratio	Max speed	Torque
M9226	ER32	1:1	5000 rpm	70 Nm

Related VDI40 configurations

M8526 — Axial Tool Head, Square
M2826 — Axial Tool Head, Square
M1726 — Radial Tool Head, Direct Drive, Right Version
M7926 — Radial Tool Head, Direct Drive, Right Version
M9526 — Radial Tool Head, Indirect Drive, Right Version
M6326 — Axial Tool Head, Square
M4526 — Axial Tool Head, Square
M3826 — Axial Tool Head, Round, INT Nut, Through Coolant
M6066 — Axial Tool Head, Round, INT Nut, Through Coolant
M7066 — Axial Tool Head, Round, INT Nut, Through Coolant
M3066 — Radial Tool Head, Indirect Drive, Right Version
M4066 — Radial Tool Head, Indirect Drive, Right Version

Frequently asked

What machines does the Mongtec M9126 fit?

M9126 is built for the VDI40 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 M9126 run?

M9126 is rated to 5,000 rpm with 70 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 M9126 take?

M9126 takes ER32 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 M9126?

Yes. Mongtec supplies the full dimensioned drawing for M9126 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 M9126 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 M9126 are supplied by email once the enquiry is open.

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