Haimer Shrink Fit Collet For ER25, Ø = 8 mm 81.250.000.08 (0843705)

Haimer Part Number: 81.250.000.08

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:

- Shrink Fit Collets

- Original HAIMER accessory

- The HAIMER shrink fit collets are compatible with all established ER nuts and optionally available with Cool Jet bores.

- High concentricity: 3 µm

- High clamping forces

- For solid carbide tools with shank tolerance h6

- Low tendency to contamination due to compact monodesign

- Reduced set-up times due to external shrinking and presetting

- Available in various lengths

- Perfectly suitable for driven units and spindles with ER interface

- Perfectly suitable for shrink fit unit Power Clamp Sprint i4.0

- The shrink fit collets can only be used with HAIMER i4.0 shrink fit technology and hand scanner.

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Background Information:

The ER tool holder system was invented by Fritz Weber, founder of Rego-Fix, and released in 1972. The ER-type system was originally used as a broom head to handle interface! The R in "ER" stands for Rego-Fix, and represents the company's modification to common "E" collet design of the early 20th century. Specifically, the modification was adding a groove to the collet which keeps it captive in the nut while installing/removing; eliminating the problem of collets getting stuck in the holders. Upon patent expiry the system was standardized in 1993 under DIN 6499 and is today the most recognizable and commonly used collet system worldwide.

The classic ER interface, tried and true.

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.