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Description

SK50 Indexable Drill Holder, Weldon

For maximum performance in heavy-duty machining operations, the SK50 solid-drill holder with Weldon mount to DIN 69893 is the uncompromising solution. With its rigid SK50 interface, it provides the highest level of stiffness and process reliability – ideal for solid drills, indexable drills and other large-dimensioned tools.

The Weldon mount ensures a secure, positive clamping connection and transmits high torques without tool slippage. The reinforced internal construction effectively minimizes vibration, resulting in improved dimensional accuracy, higher surface quality and longer tool life.

The integrated through-bore enables the use of internal coolant supply (IKZ) – for optimized chip evacuation, lower cutting temperatures and reduced tool load. With runout accuracy of ≤ 0.005 mm, H6 bore tolerance and heat-treated tool steel construction, this holder meets the highest demands in CNC machining centres and milling machines.

Those who make no compromises in heavy-duty machining rely on the SK50 solid-drill holder – precision and stability at industrial level.

technical drawing with SK50 standard, Weldon clamping system, through-bore for coolant (internal coolant) and robust material construction – clear and variant-neutral
Properties
Hardening Depth: 0,8 mm ~ 0,9 mm
Internal Cooling: With Internal Cooling
Material: High-Strength Quenched and Tempered Steel (Quenched and Tempered)
Max. Runout Deviation: < 5µm
Spindle Mount: SK50
Standard: DIN 69871
Surface Hardness: HRC 52~55
Surface Roughness: RA < 0,5 µm
Manufacturer information

Pflichtangaben gemäß GPSR Produktsicherheitsverordnung:

TILL TOOLS GmbH
Am Kebigsgraben 19
97616 Salz
Deutschland
E-Mail: info@tilltools.de

Reviews 9

9 of 9 reviews

Average rating of 4.78 out of 5 stars


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9 reviews

4 April 2026 10:47

Review with rating of 5 out of 5 stars

SK-Aufnahme für Vollbohrer schwerer Belastung

Die SK-Aufnahme in der größeren Variante passt für unsere schwereren Vollbohrer, die Weldon-Spannung hält die Bohrer fest auch bei höheren Schnittkräften.

11 February 2026 10:30

Review with rating of 5 out of 5 stars

die Weldon-Aufnahme im großen Format solide

Kräftige Aufnahme für die größere Maschine, Rundlauf wiederholgenau. Auch bei wechselnden Werkstoffen bleibt der Schnitt ruhig.

31 December 2025 07:07

Review with rating of 5 out of 5 stars

Einfach gut

Macht einen ordentlichen Eindruck. Gute Verarbeitung, sauber gefertigt. Kann ich so weiterempfehlen.

29 December 2025 17:05

Review with rating of 5 out of 5 stars

Schwere Weldon-Aufnahme solide

Für größere Vollbohrer mit hohen Zerspanungskräften. Sitzt bombenfest in der Spindel, keine Wanderung bei Belastung.

20 December 2025 10:23

Review with rating of 4 out of 5 stars

Schwere Bohrer-Aufnahme macht stabilen Job

Die massive Schnittstelle merkt man bei Stoßzerspanung sofort. Weldon-Klemmung sitzt satt, Rundlauf ist unauffällig. Für die schwerere Baustelle genau richtig, bisher ohne Auffälligkeiten.

13 December 2025 22:37

Review with rating of 5 out of 5 stars

Große Vollbohreraufnahme für schwere Zerspanung

Für schwere Bohroperationen an Werkzeugkörpern ist die große Aufnahme sehr stabil. Der Weldon-Sitz klemmt sicher, die Verarbeitung ist sauber. Gute Anschaffung für entsprechende Maschinen.

21 November 2025 09:47

Review with rating of 5 out of 5 stars

Große Weldon-Aufnahme für große Maschinen

Robuste Aufnahme für große Werkzeugmaschinen, sitzt satt und hält den Vollbohrer sicher. Bin rundum zufrieden.

12 October 2025 13:22

Review with rating of 5 out of 5 stars

Weldon-Aufnahme für große Spindel

Die große Weldon-Aufnahme für den Vollbohrer, passt in die Großmaschinen-Spindel. Klemmung sitzt ohne Probleme.

30 April 2025 08:26

Review with rating of 4 out of 5 stars

Brauchbar im Alltag

Die Aufnahme passt und der Bohrer sitzt sicher. Verarbeitung ist okay, nichts Besonderes aber funktioniert.

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