Precision Machinist Setup Blocks / Bore Fixtures + Adjustable Expanding Mandrel Tool Set

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Condition:

Used – Good condition. Shows normal shop wear (light scratches, minor marks) but all pieces are solid, clean, and fully functional.

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Description:

This is a precision machinist tooling set that includes multiple bore setup blocks and an adjustable expanding mandrel tool. Ideal for machine shop work, inspection setups, or holding and aligning round parts accurately.

Included in this lot:

* (2) Precision bore blocks

* One square outer body

* One hexagonal outer body

* Both with precision machined internal bores

* (1) Adjustable expanding mandrel tool with handle

* (2) Threaded rings / collars

* (1) Precision angle block

* (3) Thin shim / gauge strips

The blocks appear to be hardened and ground, suitable for precision workholding or inspection setups. One block is marked “Made in Taiwan.”

Approximate size:

* Blocks are roughly 3”–4” in length (see tape measure in photos)

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Features:

* Precision machined bores

* Heavy-duty steel construction

* Expanding mandrel for internal gripping

* Great for lathe, mill, or inspection use

* Versatile setup tooling for machinists

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Applications:

* Holding round parts internally

* Inspection and measurement setups

* Jig and fixture building

* Machine shop workholding

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Notes:

* Sold as a lot only (everything shown included)

* No original box or manufacturer documentation

* Please review all photos carefully for details and condition