14mm ER Collet ER40 Clamping Range Nennmaß Minus 1.0mm, L46mm - TECWERK

High-precision clamping with a 14 mm nominal bore and a guaranteed 5 µm runout provides consistent tool performance; the compact 46 mm length enables flexible mounting in tight assemblies. Order the TECWERK ER 40 collet directly via Metav Werkzeuge or ask our consultants if needed.

Collet ER 40/472 E — ER 40 collet, 14 mm clamping diameter (TECWERK)

The Collet ER 40/472 E by TECWERK is a precision ER 40 collet designed for secure clamping of tools in standard ER collet chucks across machining centres and toolholders.

*Conforms to DIN 6499‑B standard *Precision runout of 5 µm *Full-length tool support for stable clamping *Compatible with ER 40 collet chucks

Consistent concentricity for repeatable machining

The collet delivers a runout of 5 µm, ensuring that cutters and toolholders run concentrically under load. This level of accuracy reduces vibration and tool wear, which leads to fewer rejects and longer tool life. The design permits clamping over the full length of the tool shank, so radial support is maximised; smaller-diameter tools can be clamped securely because the span bridging is nominal minus 1.0 mm, allowing safe gripping of slightly undersized shanks without loss of stability.

Faster set-up and broad compatibility save cycle time

Built to DIN 6499‑B, the clamping sleeve mates reliably with standard ER chucks, eliminating guesswork when replacing or upgrading holders. No intermediate sizes are required, which simplifies inventory and reduces changeover complexity on the shop floor. The ability to clamp on the lead chamfer as well as the straight shank shortens set-up procedures and keeps spindle downtime to a minimum, supporting efficient production runs.

Compact form and robust holding for everyday workshop use

With a length of 46 mm, an outer diameter of 41 mm and a clamping bore of 14 mm, this ER 40 collet offers a compact footprint while maintaining high clamping force. The geometry holds tools securely across the entire clamping surface, which helps to prevent slippage under heavy cutting conditions. The solid construction and standardised dimensions make the sleeve straightforward to fit into existing tool management processes, providing a dependable component for precision work.

Discuss workshop compatibility and availability with Metav Werkzeuge: email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored technical advice on the TECWERK ER 40 collet (SKU 2000832974NW)

Technical data

• Article number: 2000832974NW
• Type: ER 40
• Label: Collet ER 40/472 E — clamping diameter 14 mm
• Product type: ER collet
• Manufacturer: TECWERK
• Packaging unit: 1

Core specifications

• Clamping diameter: 14 mm
• Length L: 46 mm
• Inner diameter d: 14 mm
• Outer diameter D: 41 mm
• Runout / repeatability: 5 µm
• Span bridging: nominal minus 1.0 mm

Special features

• According to DIN 6499‑B
• Compatible with ER collet chucks
• No intermediate sizes required
• Tools held over the full clamping length
• Can be clamped on the lead chamfer

FAQ

What tolerance can be expected for concentricity with this collet?
The TECWERK Collet ER 40/472 E is specified with a runout/repeatability of 5 µm, which supports high-precision machining and reduced tool wear in demanding operations.

Is the collet compatible with standard ER 40 chucks?
Yes — the sleeve conforms to DIN 6499‑B and is designed for use with standard ER 40 collet chucks, ensuring straightforward interchangeability in existing toolholding systems.

What does “span bridging: nominal minus 1.0 mm” mean for clamping smaller shanks?
The specification "nominal minus 1.0 mm" indicates that the collet can securely bridge and clamp shafts up to 1.0 mm below the nominal diameter, allowing slightly undersized tools to be gripped safely without additional adaptors when using the TECWERK ER 40 collet.

Can the tool be clamped on the chamfer or only on the straight shank?
The design permits clamping on the lead chamfer as well as on the straight section of the shank, enabling flexible set-up options and improved holding for tapered or chamfered tool ends with the TECWERK ER 40/472 E collet.

Manufacturer/Responsible: NORDWEST Handel AG, Robert-Schuman-Straße 17, 44263 Dortmund