45mm Drill Holder E1 DIN 69871 Form AD/B With Central Coolant And Reclosable Channels, SK40 70mm - TECWERK

Take advantage of a combination of precise mounting, reliable coolant management and DIN conformity for consistent drilling performance. The holder’s 25 mm clamping diameter, steep taper to DIN 69871 Form AD/B and central coolant feed support stable tool life and repeatable results; order directly via Metav Werkzeuge or consult the technical team for application alignment.

Drill holder E1 (DIN 69871 AD/B) — SK40, central coolant

A Drill holder E1 (DIN 69871 AD/B) designed for indexable insert drills with a cylindrical shank and lateral drive flat, suitable for SK40 spindles and applications requiring central coolant.

• Steep taper DIN 69871 Form AD/B
• Central coolant supply
• Re-sealable coolant channels at collar
• For indexable insert drills, DIN 1835-B shank

Precision seating and process compatibility for indexable drilling

The holder delivers precise mechanical interface by combining a steep taper conforming to DIN 69871 Form AD/B with a defined clamping arrangement for insert-style drills. With an outer diameter of 45 mm and a 25 mm clamping diameter, the assembly ensures consistent concentricity when accepting tools with a cylindrical shank and lateral drive flat to DIN 1835-B. Bore tolerance H4 at the mounting bore reduces radial play and helps to maintain low runout over repeated tool changes. This mechanical stability translates into predictable hole quality and less scrap in production environments where repeatability matters.

Directed coolant and sealed channels for longer insert life

Optimised fluid supply is provided through a central coolant supply that feeds cutting edges directly, while re-sealable coolant channels at the collar permit secure routing and leak-free operation when the holder is mounted. Concentrated coolant flow lowers cutting temperature and supports improved chip evacuation for indexable drilling processes. The result is reduced thermal load on inserts and potential for extended tool life, which benefits cycle-time stability and lowers downtime for frequent insert changes.

Robust mounting and straightforward integration into CNC spindles

Mounting on SK40 spindles is supported by the standard taper and defined dimensions (projection A: 70 mm, outer diameter D: 45 mm), facilitating easy integration into existing tooling systems. The Drill holder E1 is manufactured to maintain positional accuracy under operating loads, helping to stabilise drilling forces and maintain hole tolerance. For workshops and production lines aiming to centralise their tooling supply, the holder’s adherence to DIN standards simplifies procurement and reduces compatibility checks across different machines.

Contact Metav Werkzeuge for detailed application advice or to arrange delivery of the TECWERK drill holder E1 (SKU 2000833053NW) and confirm suitability for a specific machine setup

Technical Data

• Article number: 2000833053NW
• Form: E1
• Standard: DIN 69871 Form AD/B
• Product type: Drill holder
• Brand: TECWERK

Core data

• Clamping diameter: 25 mm
• Outer diameter D: 45 mm
• Projection A: 70 mm
• Bore tolerance: H4
• Mounting taper: SK40

Special features

• Central coolant supply
• Re-sealable coolant channels at collar
• For indexable insert drills with cylindrical shank and lateral drive flat to DIN 1835-B
• Suitable for Wendeplattenbohrer (indexable insert drills)

FAQ

Is this holder compatible with indexable insert drills? The Drill holder E1 by TECWERK (SKU 2000833053NW) is designed specifically to accept indexable insert drills with a cylindrical shank and lateral drive flat in accordance with DIN 1835-B.

How does the coolant system work on this holder? Coolant is fed via the central coolant supply and routed through re-sealable channels at the collar, providing directed flow to the cutting edge to aid cooling and chip control for the TECWERK drill holder.

Can this be mounted in an SK40 spindle? Yes, the steep taper conforms to DIN 69871 Form AD/B and the holder is intended for SK40 mounting, ensuring compatibility with standard SK40 spindles.

What are the key dimensional tolerances to expect? Key dimensions include a clamping diameter of 25 mm, projection A of 70 mm and outer diameter D of 45 mm; the mounting bore is produced to bore tolerance H4 to maintain concentricity.

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