52mm Drill Holder E1 DIN 69871 Form AD/B With Coolant Channels, H4 Bore Tolerance - TECWERK

Take advantage of the combination of precise coolant management, a DIN‑standard steep taper and a tight bore tolerance for reliable machining results; order the drill holder directly via Metav Werkzeuge or consult our technical team for application advice.

Drill holder E1 (DIN 69871 AD/B) – SK40, 75 mm projection | TECWERK

Drill holder E1 provides secure acceptance of indexable‑insert drills with central coolant feed for CNC drilling applications across workshops and production environments

• Steep taper to DIN 69871 Form AD/B
• Central coolant supply for internal cooling
• Re‑sealable coolant channels at the flange
• For indexable‑insert drills to DIN 1835‑B

Maximised rigidity for consistent hole quality

The holder is engineered to transfer spindle torque with minimal deflection, delivering consistent hole quality even under repeated cycles. The combination of the SK40 interface and the steep taper per DIN 69871 secures axial and radial stability, which reduces runout and improves tool life. This mechanical rigidity translates into fewer reworks and a more reliable production process when using indexable cutters.

Efficient coolant management to extend tool life

Integral central coolant supply and re‑sealable coolant channels at the flange allow direct lubricant delivery to the cutting edge, reducing heat and aiding chip evacuation. Focused coolant flow lowers cutting temperatures and diminishes thermal distortion, which in turn lengthens insert life and preserves hole tolerances. The re‑closable channels permit straightforward flushing and maintenance without disassembly, supporting uninterrupted shopfloor operation.

Precision fit for indexable‑insert drills and simple integration

Designed for acceptance of indexable‑insert drills with a cylindrical shank and lateral drive per DIN 1835‑B, the toolholder provides a precise seating with bore tolerance H4, ensuring repeatable concentricity. The 75 mm projection balances reach and stiffness for moderate overhang drilling, while the external diameter of 52 mm gives a robust clamping interface. Compatibility with standardised shank formats simplifies integration into existing toolholder inventories.

Built for workshop reliability and straightforward upkeep

The construction focuses on serviceability and uptime: the re‑sealable coolant channels reduce downtime for maintenance, and the standardised form factor supports rapid replacement within CNC tool libraries. Clear adherence to industry standards minimises setup errors and supports systematic tool management. The result is a practical, precision‑oriented solution tailored for manufacturing environments that prioritise reproducible results and operational continuity.

For precise CNC drilling with controlled coolant delivery, specify the TECWERK SK40 drill holder E1 and contact Metav Werkzeuge for procurement and technical guidance from Emmerich.

Technical data

• Article number: 2000833054NW
• Type: Drill holder (Bohrhalter)
• Form: E1
• Standard: DIN 69871 Form AD/B
• Manufacturer: TECWERK

Core dimensions

• Diameter: 52 mm
• Projection (A): 75 mm
• Clamping diameter: 32 mm
• Shank interface: SK40
• Bore tolerance: H4

Special features

• Central coolant supply
• Re‑sealable coolant channels at the flange
• For indexable‑insert drills with cylindrical shank to DIN 1835‑B
• Intended for steep taper mounting per DIN 69871

FAQ

Is the holder compatible with indexable‑insert drills with a cylindrical shank?
Yes. The Drill holder E1 from TECWERK is configured for indexable‑insert drills with a cylindrical shank and lateral drive according to DIN 1835‑B.

What shank interface and standard does it use?
The toolholder uses an SK40 shank and conforms to DIN 69871 Form AD/B, ensuring compatibility with matching steep taper spindles.

How is coolant delivered to the cutting zone?
Coolant is fed centrally through the holder; the design includes re‑sealable coolant channels at the flange to direct fluid to the insert pocket.

What are the key dimensions for setup planning?
Projection (A) is 75 mm and the external diameter is 52 mm; clamping diameter is 32 mm and bore tolerance is H4.

Can the coolant channels be serviced without full disassembly?
Yes. The re‑sealable channels permit flushing and inspection at the flange, reducing maintenance time.

What is the SKU for ordering and reference?
Refer to SKU 2000833054NW when ordering the TECWERK drill holder E1 for accurate procurement and stock control.

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