Haimer Weldon Tool Holder, D = 16 mm, long, SK50 50.301.16 (0838573)

Haimer Part Number: 50.301.16

HAIMER is a global leader in tool holding, balancing, and presetting technology. Founded in 1977 and headquartered in Igenhausen, Germany, HAIMER offers premium shrink fit chucks, tool balancing machines, and precision tool holders trusted in high-performance machining environments worldwide.

This product is priced singly and comes in packs of 1.

Please note that the actual item may not be/look exactly the same as shown in the item picture(s).

Product Features:

- Weldon Tool Holder, DIN ISO 7388-1, SK50

- (formerly DIN 69871)

- Chuck fine balanced G2.5 at 22.000 rpm

- All functional surfaces fine machined

- Taper tolerance AT3

- Coolant supply form AD/AF

- For clamping cutters with cylindrical shank and Weldon flat similar to DIN 1835-B and DIN 6535-HB.

- Similar to DIN 6359-2 with steep taper SK50 form AD/AF DIN ISO 7388-1 (formerly DIN 69871).

- The form AD/AF provides internal coolant supply as standard, either centrally through the pull stud (AD version) or via coolant channels through the flange (AF version).

- Also suitable for ANSI-CAT

- With clamping screw

- For a constant and acurate cooling of the cutting tool we recommend the optional cooling system Cool Jet.

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Background Information:

The SK system utilizes a proven 'fast taper' (7:24) self-releasing format. These conform to DIN ISO 7388-1 (formerly DIN 69871). Note that ISO, CAT, BT, and SK are NOT interchangeable even though they use the same basic taper!.

The Weldon interface utilizes a straight bore and one or more setscrews to grip the tool shank, and was invented circa 1918 by Carl A. Bergstrom in Cleveland, USA. Although seemingly crude and archaic, this style of tool holder interface often outperforms more modern systems when it comes to extremely heavy machining loads, and cannot be beat for simplicity.

Company History:

Family-owned since 1977, HAIMER has grown from a precision parts specialist into a global tooling solutions supplier with operations across Europe, North America, and Asia.