6mm ER25 Collet Precision Clamping Collet 5 µm Runout, L34 D26 - TECWERK

Precision clamping and proven runout control ensure stable tool holding and consistent part quality; with full‑length support and DIN 6499‑B conformity this ER 25 collet offers a dependable solution for precision tooling. Order the ER 25 collet directly via Metav Werkzeuge or ask our consultants if needed.

TECWERK ER 25 Collet – 6 mm Clamping Diameter, conform DIN 6499‑B

TECWERK ER 25 collet 6 mm for precision clamping in ER collet chucks, designed for secure tool holding and repeatable centring in machining operations

• Conforms to DIN 6499‑B
• High runout accuracy 5 µm
• Full‑length tool support
• Fits standard ER collet chucks

Precision that reduces setup time and scrap

The ER 25 collet is manufactured to the DIN 6499‑B standard and delivers a runout repeatability of 5 µm, a figure that directly contributes to tighter tolerance keeping and reduced rework. The adherence to an established metric ensures compatibility with industry‑standard tooling and measuring equipment; this makes integration into existing setups straightforward and measurable. By choosing a collet specified for minimal radial runout, operators can expect improved surface finish and longer tool life, which translates into fewer interruptions on the shop floor and more predictable production output.

Secure clamping across the entire tool length

Tools are held along the full clamping length, which increases contact area and reduces vibration during cutting. The collet also permits clamping on the lead chamfer, enabling reliable retention even when tools have short shanks or reduced gripping length. The design allows a clamping diameter bridging of nominal minus 1.0 mm, giving a clear tolerance window for gripping slightly undersized shanks without compromising stability. The immediate benefit is a more consistent machining result and fewer tool changes caused by slippage, supporting smoother workflow in demanding operations.

Compact dimensions for straightforward workshop logistics

With an overall length of 34 mm, a clamping diameter of 6 mm (d: 6 mm) and an outer diameter D: 26 mm, this collet is compact yet robust for many turning and milling tasks. The small footprint simplifies holder selection and reduces inventory complexity since no intermediate sizes are required for common diameter transitions. Compatibility with standard ER collet chucks accelerates changeover times and supports leaner toolrooms, while the measured specifications provide clear, comparable data for procurement and quality audits.

Contact Metav Werkzeuge for specification confirmation or to arrange delivery of the TECWERK ER 25 collet; Metav Werkzeuge in Emmerich can advise on compatibility and availability for immediate workshop needs

Technical data

• Article number: 2000832927NW
• Product type: ER 25 collet
• Label: Spannzange Typ ER 25/430 E Spann‑D.6mm TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Core dimensions

• Clamping diameter: 6 mm
• Length L: 34 mm
• Inner d: 6 mm
• Outer D: 26 mm
• Runout / repeatability: 5 µm
• Clamping‑diameter bridging: nominal minus 1.0 mm

Characteristics / Features

• Conforms to DIN 6499‑B
• Suitable for ER collet chucks
• Tools held over the full clamping length
• Clamping possible on the lead chamfer
• No intermediate sizes required

FAQ

What clamping diameter does this collet accept? The collet accepts a clamping diameter of 6 mm as specified for the TECWERK ER 25 collet (SKU 2000832927NW).

How accurate is the radial runout? Radial runout is specified as 5 µm repeatability, which supports high‑precision machining with consistent concentricity.

Can the collet grip tools on the lead chamfer? Yes, the design allows clamping on the lead chamfer and holds tools across the full clamping length for improved stability.

Is this collet compatible with standard ER chucks? The collet conforms to DIN 6499‑B and is suitable for use with standard ER collet chucks designed for ER 25 tooling.

What are the main dimensions to check for toolholder compatibility? Key dimensions are length L = 34 mm, inner diameter d = 6 mm and outer diameter D = 26 mm; these are used to confirm fit with holders and spindles.

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