16mm ER Collet GB With 12mm Square Internal For Thread Cutting, 15 µm Runout - TECWERK

Benefit from precise clamping and a runout accuracy of 15 µm, paired with an internal square drive that supports secure thread cutting; the combination improves tool life and reduces rework. Order directly via Metav Werkzeuge or consult our specialists for application advice.

ER 16-GB collet – 16 mm clamping, internal 12 mm square, TECWERK

The ER 16-GB collet is a compact clamping solution for ER chucks, designed for thread cutting and general precision machining with an integrated internal square drive.

Runout accuracy 15 µm
Internal 12 mm square for taps
Compatible with ER-style chucks
Compact length L: 40 mm

Consistent precision for thread-cutting tasks

The ER 16-GB collet delivers runout accuracy of 15 µm, which directly reduces vibration and uneven wear during tapping operations. This level of precision means less scrap and fewer rejected parts in serial production, translating to measurable cost savings. The internal square drive provides positive engagement for thread-cutting holders, ensuring that rotational force is transmitted without slip. For teams seeking steady machining results, this small component contributes to larger process reliability.

Built for ER systems and standard interfaces

Conformity to DIN 6499 and the ER system makes this collet straightforward to integrate into existing clamping setups. With a clamping diameter of Ø 16 mm and an internal square of 12 mm, it suits common tap holders and compatible ER collet chucks, simplifying tool inventory. The collet’s overall length (L: 40 mm) keeps the tool projection minimal, which helps maintain rigidity and improves surface finish. These standardised dimensions support quick selection and interchangeability across workshop applications.

Reduced setup time and improved workshop efficiency

By using a standard ER collet with an internal square, changeovers between drilling, tapping and reaming operations are faster and more reliable. The precise fit reduces the need for repeated alignments, while the predictable runout minimises downstream correction work. In practical terms, this translates into shorter cycle times and higher uptime on machine tools, particularly where small-diameter tapping is frequent. The compact design supports tight toolpaths and dense fixturing without compromising clamping security.

Clear selection guidance and safe handling

Selection is simplified by the defined parameters: clamping diameter 16 mm, square 12 mm, and length 40 mm. When specifying a collet for a particular holder or tap, match these values to the toolholder and the intended tapping application. The ER 16-GB collet is intended for precision clamping in ER chucks and thread-cutting holders; if uncertainty exists about compatibility with a specific tap size or holder style, refer to technical advisors. Proper assembly and inspection contribute to maintaining the stated runout performance and prolonging service life.

For precise tapping and secure clamping choose the TECWERK ER 16-GB collet and contact Metav Werkzeuge for tailored advice and reliable supply from Emmerich

Technical data

• Article number: 2000834978NW
• Type: ER 16-GB
• Label: ER collet; 16 mm clamping, internal square 12 mm; TECWERK
• Manufacturer: TECWERK
• Product type: Collet GB
• UID: 2000834978NW

Facts

• Runout accuracy: 15 µm
• Clamping diameter: 16 mm
• Internal square: 12 mm
• Length (L): 40 mm
• Diameter (d): 16 mm

Special features

• Internal square for thread cutting holders
• Designed to DIN 6499
• Compatible with ER-style collet chucks
• Compact form factor for improved rigidity

FAQ

What runout tolerance can be expected from this collet?
The ER 16-GB collet is specified with a runout accuracy of 15 µm, providing consistent rotational precision for tapping and light finishing operations.

Is the collet suitable for thread-cutting applications?
Yes, the integrated 12 mm internal square makes the ER 16-GB collet suitable for use with tap holders and thread-cutting tools that require a positive drive.

Which chuck types are compatible with this collet?
This collet is intended for ER-style chucks and follows the dimensions and interface conventions of ER systems to ensure interchangeability.

What are the key dimensions to check for compatibility?
Verify the clamping diameter (16 mm), internal square (12 mm) and length (L: 40 mm) against the toolholder and tap holder specifications to ensure correct fit.

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