46mm Precision Boring Bar Holder E2 S Slotted, Through‑Bored DIN 69880 VDI30 - TECWERK

Take advantage of precise VDI30 clamping, a through-drilled Type A shank for coolant and adjustment, and a slotted wrap‑around design that reduces vibration for steadier bore finishing; order the holder directly via Metav Werkzeuge or consult our specialists for integration support.

TECWERK Tool Holder VDI30, Form E2 S — Type A, 12 mm clamping

The TECWERK tool holder E2 S is a VDI30 clamping solution designed to secure 12 mm boring bars with reliable concentricity, coolant capability and improved vibration damping for stable internal boring operations

• VDI30 shank, Form E2 S
• Through-drilled shank for coolant and adjustment
• Slotted wrap-around design reduces vibration
• Retaining ring prevents holder falling into turret
• Clamping diameter d2 12 mm for boring bars

Consistent concentricity for predictable bore quality

The E2 S clamping arrangement on this holder provides repeatable concentricity when used with VDI30 spindles, which directly supports tighter bore tolerances and reduced rework. The combination of a defined shank interface and a 12 mm clamping bore (d2) ensures that short boring bars remain stable during cutting cycles; operators will notice fewer runout-related defects and improved surface finish. Compatibility with the DIN 69880 standard simplifies integration into existing turret and spindle systems.

Reduced vibration for longer tool life and higher surface quality

The slotted, wrap‑around construction is engineered to dampen vibration by embracing the boring bar rather than relying on a single clamping point. This geometry lowers chatter, which not only improves surface integrity but also extends the life of solid carbide and indexable inserts used in finishing passes. Slotted-zone specifications guide application: up to 16 mm at 4×D, 20 and 25 mm at 3×D, and from 32 mm at 2.5×D, helping planners select the correct bar length and depth of cut for stable machining.

Coolant-ready and turret-safe for flexible shop workflows

As a Type A through-drilled holder, the shank allows both internal and external coolant supply and enables length adjustment from the shank side where the bore is through. The design also includes a retaining ring to prevent the holder from falling into the turret, supporting uninterrupted automated tool changes. These features make the component suitable for demanding production environments where coolant management and secure tool retention are essential for cycle reliability.

Straightforward standardisation and workshop integration

Conformance to DIN 69880 and the VDI30 interface simplifies procurement and reduces setup time across multi‑machine shops. The holder’s measurable data — D 46 mm, d1 30 mm, overall L 95 mm and working L1 73 mm — allows straightforward verification against existing tool lists and fixture designs. The component is intended for use with boring bars, including full‑round bars with a V‑groove, and is manufactured for compatibility with common turret and spindle tool systems.

If further clarification is required on suitability for particular boring bars or machining tasks, technical drawings or application examples can be provided; for detailed enquiries contact info@metav-werkzeuge.com or call +49 2822 7131930.

Contact Metav Werkzeuge for tailored advice on integrating this TECWERK VDI30 tool holder into production and benefit from our Emmerich quality filter and stocking expertise

Technical data

• Article number: 2000833473NW
• Manufacturer: TECWERK
• Product type: Tool holder for boring bars
• Standard: DIN 69880

Dimensions / core data

• Diameter (D): 46 mm
• Clamping diameter (d2): 12 mm
• Shank diameter (d1): 30 mm
• Overall length (L): 95 mm
• Working length (L1): 73 mm
• Form: E2 S
• Type: A
• Through-drilled: yes

Special features

• Slotted wrap-around design reduces vibration
• Suitable for full-round boring bars with V-groove
• Slotted zone: up to 16 mm = 4×D; 20/25 mm = 3×D; ≥32 mm = 2.5×D
• External and internal coolant possible
• Length adjustment from shank side
• Secured by retaining ring
• Compatible with VDI30 tooling systems

FAQ

What is the clamping diameter of this holder?
The clamping diameter (d2) of this TECWERK tool holder is 12 mm, intended for 12 mm boring bars.

Can coolant be supplied through the holder?
Yes, the Type A through-drilled shank on the holder enables internal coolant routing; external coolant can also be used.

Is this holder suitable for full-round boring bars?
The slotted wrap-around design is suitable for full-round boring bars with a V‑groove, improving grip and vibration control.

How does the retaining ring improve turret safety?
The retaining ring secures the holder against accidental ejection into the turret, ensuring safe automatic tool changes with TECWERK holders.

Which standard and interface does the holder use?
The holder conforms to DIN 69880 and fits a VDI30 interface, facilitating integration into standard tooling systems.

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