Iscar 4561554 Multi Clamp C8 Toolholder Clamping Unit
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The Iscar 4561554 is a Multi Clamp C8 clamping unit designed for use with Iscar's modular toolholding system, providing rigid and repeatable mounting of C8-series cylindrical shank toolholders to machine turrets or adapters. The unit consists of a black-oxide-finished steel L-bracket mounting block with two socket-head cap screw attachment points and a precision-bored split-ring clamp body (stamped "MULTI CLAMP C8") secured by a knurled thumb screw for angular positioning and a top-mounted clamping bolt with a star-knob handle for axial lock. The split-ring bore is sized to accept C8 (nominally ~50 mm OD) cylindrical shank toolholders, allowing quick-change tool exchange without disturbing the bracket mounting, making it suited for CNC lathes, turning centers, and live-tool turret applications where modular C-shank tooling is used. This unit is offered in New — other condition, meaning it is unused but may be without original manufacturer retail packaging.
Product Specifications
| Brand | Iscar |
| Part Number (MPN) | 4561554 |
| Model | Multi Clamp C8 |
| Clamp Series | C8 |
| Shank Compatibility | C8 cylindrical shank (~50 mm OD) |
| Mounting Style | L-bracket, 2x socket-head cap screw |
| Locking Mechanism | Split-ring clamp w/ star-knob bolt & thumb screw |
| Body Material | Steel |
| Finish | Black oxide |
| Condition | New — other (unused, may lack OEM packaging) |