18mm ER11 Collet 1.5mm Clamping Diameter, High Runout Accuracy 5 µm - TECWERK

Take advantage of precise, standardised clamping and proven runout performance to maintain machining consistency and extend tool life. The TECWERK ER 11 collet combines DIN 6499-B conformity with a 5 µm runout specification and a compact 18 mm length, ensuring dependable compatibility with ER collet chucks — order directly via Metav Werkzeuge or consult our experts for application advice.

ER 11 Collet 4008 E — 1.5 mm clamping diameter (TECWERK)

A ER 11 collet 4008 E designed for accurate clamping of small-diameter tools in ER collet chucks for precision milling and drilling applications

• DIN 6499-B standardised design
• Holds tools along entire clamping length
• Runout and repeatability 5 µm
• Clamping diameter 1.5 mm, length 18 mm

Consistent machining through low runout and repeatability

High-precision processes demand predictable tool behaviour; the 5 µm specification for runout and repeatability translates directly into tighter tolerances on finished parts and reduced scrap. By adhering to DIN 6499-B, the collet provides a standardised interface for ER systems, simplifying tool changes and ensuring consistent centring. For components where concentricity and surface finish matter, this level of axial control reduces vibration and improves tool life, which in turn lowers operating costs over multiple production cycles.

Secure clamping across the whole tool shank for improved stability

The clamping geometry holds tooling over the full clamping length, which increases lateral support and reduces deflection when machining slender tools. The design allows clamping on the lead-in chamfer and accommodates a clamping span of nominal minus 0.5 mm, enabling safe bridging of slightly undersized shanks without loss of grip. Such behaviour benefits repeatable, high-accuracy operations where even small shifts in tool position would cause dimensional drift or surface irregularities.

Compact dimensions and straightforward workshop integration

With a length of 18 mm and an outer diameter of 11.5 mm, this collet is compact yet robust, making it suitable for tight spindle spaces and compact tooling setups. The 1.5 mm clamping capacity addresses common small-tool applications in PCB, jewellery, and miniature milling, while compatibility with ER collet chucks reduces the need for specialised adaptors. The combination of minimal size and standard compliance supports efficient tool changes and keeps spindle overhang low, which enhances rigidity during fine-detail machining.

For dependable, repeatable clamping choose the TECWERK ER 11 collet and contact Metav Werkzeuge for procurement guidance or assistance in selecting the correct collet for specific machining needs.

Technical Data

• Article number: 2000832849NW
• Type: ER 11
• Designation: ER 11 collet 4008 E, clamping dia 1.5 mm
• Manufacturer: TECWERK
• Packaging unit: 1

Measurements & accuracy

• Clamping diameter: 1.5 mm
• Length (L): 18 mm
• Outer diameter (D): 11.5 mm
• Runout / repeatability: 5 µm
• Clamping span: nominal minus 0.5 mm

Standards & features

• DIN 6499-B
• Suitable for ER collet chucks
• Holds tools over entire clamping length
• Can be clamped on the lead-in chamfer
• No intermediate sizes required

FAQ

What accuracy can be expected from this collet? The collet delivers a runout and repeatability of 5 µm, ensuring high concentricity for small-diameter tools when used in ER collet chucks.

Can the collet bridge slightly undersized tool shanks? Yes, the clamping span permits bridging of up to nominal minus 0.5 mm, allowing secure clamping of slightly undersized shanks without specialised adaptors.

Is the collet compatible with standard ER systems? The component conforms to DIN 6499-B and is compatible with ER collet chucks designed for the ER 11 system; dimensions L = 18 mm and D = 11.5 mm match common ER 11 interfaces.

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