Mongtec M2527 — BMT65 radial driven tool holder

M2527 is a radial driven (live) tool holder for the BMT65 turret interface, using ER32 collets, rated to 6,000 rpm and 70 Nm. Mongtec Precision is a Taiwanese brand, designed and engineered in Taichung, Taiwan.

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Specification

Article number	M2527
Turret interface	BMT65 — BMT (Base Mount Turret, flange mount)
Configuration	Radial Tool Holders-b65
Orientation	Radial
Collet system	ER32
Drive ratio	1:1
Max spindle speed	6,000 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 BMT axial driven tool holder with ER collet nut, front view

Mongtec BMT driven tool holder with ER25 collet chuck

Representative photographs of Mongtec driven tooling in this class — production units, not renderings. Shown as examples of the BMT65 family, not as a photograph of M2527 itself.

What M2527 does on the machine

The driven spindle points at 90° to the lathe spindle, along the X axis. This is the configuration for cross drilling, cross tapping and slotting on the outside diameter.

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. “BMT65” identifies the nominal turret class, but BMT is an industry de-facto standard — it is not published by ISO or DIN. Bolt circle, key position and drive coupling can differ between machine builders at the same nominal size. Send Mongtec your machine model and a photograph of the turret face — engineering checks M2527 against the actual turret drawing before anything is quoted. That check is free and takes one email.

Machines with a BMT65 turret

Mongtec publishes tooling pages for these machines with a declared BMT65 turret. Confirming your model here does not confirm M2527 as the article number — that still comes from engineering.

Other BMT65 holders in the same configuration

Article no.	Collet	Ratio	Max speed	Torque
M0227	ER32	1:1	6000 rpm	70 Nm
M6227	ER32	1:1	6000 rpm	70 Nm
M1227	ER40	1:1	5300 rpm	100 Nm
M7127	ER32	1:1	6000 rpm	70 Nm
M5127	ER32	1:1	6000 rpm	70 Nm
M8427	ER32	1:1	6000 rpm	70 Nm

Related BMT65 configurations

M3227 — Axial Tool Holders-b65, Internal/through Coolant
M3427 — Axial Tool Holders-b65, Internal/through Coolant
M4027 — Axial Tool Holders-b65, Internal/through Coolant
M7427 — Axial Tool Holders-b65, Internal/through Coolant

Frequently asked

What machines does the Mongtec M2527 fit?

M2527 is built for the BMT65 turret interface. Because BMT is an industry de-facto standard rather than an ISO or DIN published standard, bolt circle, key position and drive coupling can differ between machine builders even at the same nominal size. 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 M2527 run?

M2527 is rated to 6,000 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 M2527 take?

M2527 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 M2527?

Yes. Mongtec supplies the full dimensioned drawing for M2527 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 M2527 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 M2527 are supplied by email once the enquiry is open.

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