65mm Tool Holder for Boring Bars E2 S Slotted, No Through‑Bore, DIN 69880, VDI40 - TECWERK

Take advantage of a vibration-damping, slotted clamping design and precise VDI40 compatibility for reliable boring-bar performance; order directly via Metav Werkzeuge or consult our specialists for application matching.

Toolholder E2 S DIN 69880 (Type B) – VDI40, 32 mm clamping by TECWERK

The Toolholder E2 S (Type B) secures boring bars in VDI40 toolholders and is engineered for reduced vibration and coolant flexibility in medium-duty turning and boring operations.

• Slotted design reduces vibrations
• Compatible with VDI40 spindles
• Secured by retaining ring against ejection
• External and internal coolant options

Stable clamping that increases process reliability

The slotted, Form E2 S construction is designed to wrap around the boring bar and deliver consistent radial support. This results in reduced vibrations and a more constant cutting engagement, which translates to improved surface finishes and longer tool life. Built to DIN 69880 standards for VDI toolholders, the assembly offers predictable performance in production environments where runout and chatter must be controlled.

Design features that damp vibrations and accommodate bar profiles

The holder’s slotted design permits controlled elastic deformation around the bar, which is the core mechanism for vibration damping. It is suitable for solid round boring bars, including those with a V-groove, and the clamping interface is sized for a 32 mm bar diameter. Because the body is Type B (not through-bored), the unit is optimised for standard clamping integrity rather than internal passage applications, ensuring secure retention during interrupted cuts and heavy engagement.

Cooling adaptability and machining flexibility

The design allows for both external and internal cooling, improving chip evacuation and tool life when machining challenging materials. Internal coolant use is conditional on the system design and the absence of a through-drilled shank in this Type B execution. The holder’s overall dimensions — 65 mm outer diameter and 142 mm overall length — provide a compact footprint while maintaining the rigidity needed for stable boring operations.

Practical installation and dependable retention

The toolholder is supplied with a retaining ring to prevent ejection into the turret, increasing workshop safety and uptime. The holder matches VDI40 interfaces and a 40 mm connection diameter where applicable, with a usable clamping length of 120 mm in its configuration. For routine maintenance, checking the clamping surfaces and retaining ring at regular intervals will sustain performance; replacement of worn components is straightforward and keeps machine availability high. Metav’s offering combines technical traceability and stock availability to reduce procurement complexity.

For specification checks, compatibility advice or local stock information on the TECWERK Toolholder E2 S (Type B), contact Metav Werkzeuge for tailored guidance and short lead times.

Technical data

• Article number: 2000833491NW
• Product type: Toolholder for boring bars

Facts

• Overall diameter: 65 mm
• Clamping diameter (d2): 32 mm
• Overall length (L): 142 mm
• Effective length (L1): 120 mm

Special features

• Form: E2 S
• Standard: DIN 69880
• Type: B
• Through-bored: no
• Suitable for boring bars, slotted execution
• Reduces or prevents vibration by wrapping the boring bar
• Also suitable for solid round boring bars with V-groove
• Holder shaft drilled where possible (note: Type B not through-bored)
• Secured against falling out in turret by retaining ring
• Slotted length references: up to 16 mm = 4×D, 20 and 25 mm = 3×D, from 32 mm = 2.5×D
• External and internal cooling possible (internal subject to holder variant)

FAQ

What materials and bar types is this holder suited for?
The TECWERK toolholder E2 S (Type B) is designed primarily for solid round boring bars, including bars with a V-groove; material suitability depends on the selected boring bar grade and insert geometry rather than the holder itself.

Does the holder allow internal coolant through the shank?
The holder supports both external and internal cooling in general design; however, this specific Type B variant is not through-bored, so internal coolant through the shank is not available on this version.

How does the slotted design reduce vibration?
The slotted geometry of the E2 S holder provides elastic clamping that absorbs and dissipates cutting forces, producing reduced vibrations and improving surface finish and tool life when using the correct boring bar diameter.

Is this toolholder compatible with VDI40 toolholders on the lathe?
Yes, the unit is configured for VDI40 spindles and adheres to DIN 69880 dimensional guidance for secure seating and repeatable positioning.

What retention features prevent the boring bar from ejecting into the turret?
The holder includes a retaining ring to secure the assembly and prevent ejection during interrupted cuts or tool indexing; this enhances safety and reduces the risk of damage in the turret.

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