46mm Tool Holder For Boring Bars E2 S Reduced Vibration, Through‑Bore DIN 69880 - TECWERK

Take advantage of a robust combination of vibration reduction and adaptable cooling to keep boring operations precise and productive; the slotted E2 S design and through‑bored Type A shank ensure reliable tool support and simple length adjustment. Order the TECWERK toolholder directly via Metav Werkzeuge or consult our specialists for fitment advice.

TECWERK toolholder for boring bars, Type A, slotted E2 S — VDI40, 10 mm clamping

The TECWERK toolholder for boring bars provides a slotted, through‑bored solution for vibration‑sensitive internal and external boring applications in turret lathes and turning centres.

• Slotted design reduces vibration during boring
• Through‑bored shank, Type A, for cooling and adjustment
• Compatible with VDI40 taper and DIN 69880
• Secured by retention ring, prevents turret fall‑out

Precise boring through controlled vibration damping

The slotted E2 S construction wraps the boring bar to reduce resonant movement, delivering consistent bore quality and prolonging cutting‑edge life. The design achieves vibration reduction by allowing the holder to deform slightly around the bar, damping chatter without complex dampers. For production environments where runout and surface finish matter, this holder stabilises the boring bar and supports repeatable results across batches, supporting tighter tolerances and fewer reworks.

Cooling and length adjustment for uninterrupted machining

A through‑bored shank enables both internal and external cooling, improving chip evacuation and coolant delivery to the cutting edge. This capability helps maintain cutting temperatures and extends insert life, particularly on long‑reach borings. The holder also allows length adjustment from the shank side when the bar is through‑bored, making setup changes straightforward and reducing spindle downtime. These features combine to increase effective tool life and operational uptime.

Broad compatibility with machine standards and bar formats

Built to DIN 69880 and fitting a VDI40 taper, the holder integrates into standard turret systems without adapter work. The internal clamping bore of 10 mm suits common small‑diameter boring bars and, due to the slotted geometry, accepts full‑round bars with a V‑groove. This compatibility minimises inventory complexity and accelerates changeovers across different machines and applications, making the holder a pragmatic choice for mixed‑shop production.

Safe mounting and adaptable slotted reach for different diameters

A safety securing ring prevents the holder from dropping into the turret, a practical safeguard during indexed tool changes. The slotted area is dimensioned for effective clamping across a range of depths (e.g. up to 16 mm at 4×D, 20 and 25 mm at 3×D, and from 32 mm at 2.5×D), allowing the holder to be matched to the required overhang and stiffness. These measures reduce the risk of tool loss and unscheduled stops, helping to maintain a steady production flow.

Contact Metav Werkzeuge today to confirm suitability for specific machines and to arrange supply of the TECWERK Type A slotted toolholder; Metav’s team in Emmerich can advise on delivery times and compatibility

Technical data

• Article number: 2000833486NW
• Manufacturer: TECWERK
• Product type: Toolholder for boring bars

Dimensions and core data

• Diameter (D): 46 mm
• Overall length (L): 95 mm
• Length L1: 73 mm
• d1: 40 mm
• d2 (clamping bore): 10 mm
• Form: E2 S

Features and applications

• DIN 69880 compliant
• Type A = through‑bored shank
• Slotted execution reduces vibration by wrapping the bar
• Suitable for full‑round boring bars with V‑groove
• Slotted reach: up to 16 mm at 4×D; 20 and 25 mm at 3×D; from 32 mm at 2.5×D
• External and internal cooling possible
• Secured against falling into turret by retention ring
• Length adjustment possible from the shank side when through‑bored

FAQ

What taper does the holder fit?
The holder is designed for a VDI40 taper and complies with DIN 69880, making the TECWERK toolholder (SKU 2000833486NW) compatible with standard VDI40 tool posts.

Can this holder supply coolant to the cutting edge?
Yes, the Type A through‑bored shank allows both internal and external coolant, so coolant can reach the cutting area when using internal coolant lines or external nozzles.

Which clamping diameter is supported?
The clamping bore for the holder is 10 mm, intended for 10 mm boring bars; the slotted design also accepts full‑round bars that include a V‑groove.

How does the design reduce vibration?
The slotted E2 S construction wraps and compresses the bar slightly to damp chatter; this passive vibration control improves surface finish and reduces rework compared with rigid, unslotted holders.

Is the holder secure in the turret during indexing?
Yes, the holder features a retention ring to prevent it from falling into the turret, reducing the risk of tool loss during rapid tool changes.

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