42mm Face Clamping Chuck With 12mm Weldon Bore, Internal Coolant / DIN 69893 Form A - TECWERK

Secure precise, coolant-fed machining with the combination of a hollow HSK-A63 taper, internal coolant and a Weldon flat for dependable clamping; benefit from repeatable positioning, reduced tool change time and straightforward integration — order this clamping holder directly via Metav Werkzeuge or ask our consultants for application guidance.

TECWERK face clamping holder DIN 69893 Form A — HSK-A63 with internal coolant, Weldon Ø 12 mm

The TECWERK face clamping holder DIN 69893 Form A is a HSK-A63-mounted toolholder designed for secure clamping of 12 mm cylindrical shank cutters in machining centres, offering internal coolant and lateral feed channels for consistent cooling and chip control.

• Hollow shank taper to DIN 69893 Form A
• Internal coolant with lateral feed channels
• Weldon flat clamping Ø 12 mm, H4 tolerance
• Lateral driving face to DIN 1835 B for torque transfer

Accurate clamping that keeps production stable

The hollow HSK-A63 taper complies with DIN 69893 Form A, providing high-precision centring and a rigid interface that reduces runout and vibration. By combining a hollow shank taper with a Weldon flat for positive axial and rotational retention, the holder delivers repeatable positioning and predictable tool behaviour. This stability translates into fewer scrapped parts and more consistent surface finish, which supports lean production and reduces the need for rework.

Controlled cooling for longer tool life and consistent cuts

Equipped with internal coolant and lateral coolant channels for tools with cylindrical shanks, the holder directs cutting fluid close to the tool tip to lower cutting temperatures and improve chip evacuation. Better cooling helps maintain cutting-edge geometry for longer and reduces thermal expansion in critical tolerances, enabling higher material removal rates and extended tool life without sacrificing surface integrity.

Workshop compatibility and simple integration

Designed with a lateral driving face to DIN 1835 B and a bore tolerance of H4, the holder is compatible with standard tool clamping systems and Weldon-style shanks. The compact outer diameter of 42 mm and an overall length A: 80 mm make the unit easy to fit into tight tool magazines and multi-spindle arrangements. Clear adherence to established standards ensures predictable interchangeability across machines and tooling suppliers.

Design features that reduce downtime

The combination of a hollow taper, precise bore tolerance and a secure Weldon clamping surface simplifies tool changes and inspection. The H4 bore tolerance ensures a tight press fit where required, while the lateral feed channels and internal coolant reduce the frequency of thermal-related issues. Together these features contribute to shorter set-up times and less unscheduled maintenance, supporting higher equipment availability on the shop floor.

For technical matching, stock information and personalised advice contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 — Metav’s consultants will assist with selection and logistics.

Technical data

• Article number: 2000833838NW
• Product type: Face clamping holder
• Label: Flächenspannfutter DIN 69893A Weldon Spann-D.12mm HSK-A63 A.-L.80mm m.IK TECWERK

Dimensions & tolerances

• Length A: 80 mm
• Outer diameter D: 42 mm
• Clamping Ø d: 12 mm
• Bore tolerance: H4

Features

• Tool interface: HSK-A (HSK-A63 as per label)
• Cooling: internal coolant
• Lateral coolant channels for cylindrical shank tools
• Lateral driving face to DIN 1835 B
• Standard: DIN 69893 Form A
• Weldon flat clamping

FAQ

What shank types does the holder accept?
The TECWERK face clamping holder accepts cylindrical shank tools with a Weldon flat clamping Ø 12 mm and is prepared for tools that match the specified Weldon-style retention.

Is the holder suitable for internal coolant supply?
Yes, the holder features internal coolant and lateral feed channels to supply cutting fluid directly to tools with cylindrical shanks.

Which machine taper is required?
The holder is designed for an HSK-A tool interface (HSK-A63 as specified), compliant with DIN 69893 Form A for accurate centring.

How does the H4 bore tolerance benefit workshop use?
The H4 bore tolerance ensures consistent seating and concentricity of the tool shank, improving concentricity and reducing runout compared with loose tolerances.

Does the holder meet drive-face standards for torque transfer?
Yes, the unit includes a lateral driving face made to DIN 1835 B, providing positive torque transfer for demanding machining operations.

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