75mm E2 Tool Holder For Boring Bars Through-Coolant Cylindrical Shank DIN 69880 - TECWERK

Taking advantage of a proven DIN 69880 interface and a compact VDI40 shank, the holder combines precise clamping with uninterrupted coolant supply to reduce setup time and improve bore quality. Order the tool holder via Metav Werkzeuge or contact the consultants for technical assistance.

Tool holder E2 (VDI40) – DIN 69880, clamping Ø12 mm (TECWERK)

A Tool holder E2 (VDI40) engineered for secure mounting of boring bars, providing internal and external coolant supply for CNC boring and turning operations.

• Internal and external coolant supply
• Through-drilled coolant passage
• VDI40 cylindrical shank, Form E2
• Clamping diameter 12 mm, DIN 69880

Stable clamping for concentric bores and reduced runout

The holder delivers reliable mechanical support for boring bars by combining a VDI40 interface with an E2 geometry that is optimised for axial stability. The clamping diameter 12 mm secures the bar with minimal play, which improves concentricity and reduces runout during high-precision machining. For shops upgrading spindle tooling, this results in fewer rejects and more consistent surface finishes without complex alignment procedures.

Coolant routing that keeps chips away and tools cool

Integrated internal and external coolant supply plus a through-drilled passage allow coolant to reach the cutting edge directly. This design removes the need to shorten the boring bar for coolant access, preserving bar length and rigidity. By flushing chips from the cutting zone and maintaining cutting temperatures, the system extends tool life and stabilises process parameters, supporting higher material removal rates with fewer interruptions.

Straightforward integration into existing DIN-compliant setups

Designed to DIN 69880 standards, the holder fits established toolposts and turrets while requiring minimal adaptation. The cylindrical shank with d1: 40 mm and installation length l6: 75 mm aligns with common VDI40 tool stations, enabling quick changeover between holders. Clear geometric references streamline inventory management and tool configuration in production environments focused on repeatability and predictable cycle times.

Low maintenance, long-term workshop reliability

The through-drilled configuration and robust E2 design minimise additional maintenance steps: there is no need for customised bar modification and flushing channels are self-contained. This simplicity reduces machine downtime and keeps fixtures serviceable with standard workshop procedures. Combined with proven material interfaces and standardised dimensions, the holder supports continuous production in demanding turning and boring applications.

For specification checks or to integrate the TECWERK Tool holder E2 into an existing setup, request technical advice from Metav Werkzeuge — contact info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 2000833680NW
• Manufacturer: TECWERK
• Product type: Tool holder for boring bars
• Form: E2
• Standard: DIN 69880

Facts

• Clamping diameter d2: 12 mm
• Shank diameter d1: 40 mm
• Outer diameter d8: 55 mm
• Installation length l6: 75 mm
• Head length l3: 22 mm
• Head diameter d6: 83 mm
• Height h1: 32.5 mm

Special features

• Internal and external coolant supply
• Through-drilled execution
• Suitable for boring bars
• Cylindrical shank, VDI40 compatible
• No shortening of boring bar necessary

FAQ

How does the coolant flow reach the cutting edge?
The holder uses an internal and external coolant supply with a through-drilled passage so coolant is delivered directly along the boring bar to the cutting zone, improving cooling and chip evacuation for the TECWERK tool holder E2.

Is shortening of the boring bar required for coolant access?
No; the through-drilled design eliminates the need to shorten the bar, which preserves bar rigidity and length for longer reach in machining operations.

Which interface standard does this holder follow?
The holder complies with DIN 69880 and uses a VDI40 cylindrical shank, allowing integration into standard VDI40 tool stations without special adapters.

What clamping diameter and shank dimensions are provided?
Clamping diameter is 12 mm (d2: 12 mm) and the shank diameter is 40 mm (d1: 40 mm); other key dimensions include l6: 75 mm and d8: 55 mm for installation planning.

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