Solid, heavy-duty split clamp block / shaft holder fixture—great for workholding, supporting round stock, or building custom jigs. This is a machined steel clamp with (4) socket head cap screws for strong, even clamping and (2) threaded mounting holes on the base for bolting to a plate, fixture, or machine setup.

Key details:

• Bore size: approx 1.38" (shown on caliper)

• Overall length: approx 6.5"

• Weight: 7 lb 6 oz (heavy, rigid)

• Clean machined surfaces with normal shop wear

You will receive the exact item shown—please review photos for full condition and dimensions.

Item specifics

• 🧰 Type: Split clamp block / shaft holder / workholding fixture

• 📏 Bore/ID: Approx. 1.38 in

• 📐 Overall length: Approx. 6.5 in

• ⚙️ Material: Steel (machined)

• 🔩 Hardware: (4) socket head cap screws installed

• 🧲 Mounting: (2) threaded base holes

• ⚖️ Weight: 7 lb 6 oz

• 🏭 Brand: Unbranded / shop-made (no markings found)

• 🇺🇸 MPN: Does Not Apply

Condition
Used — normal shop wear, light surface oxidation/rust visible on screw heads and minor handling marks; threads and clamping area appear intact.

Additional details
Seller’s Note: Please review all photos carefully for exact condition, measurements, and what’s included—only the item shown is included. Ships well-packed for safe delivery.

Keywords
split clamp block, shaft clamp, bore clamp, 1.38 bore, 1-3/8 clamp, steel fixture block, lathe fixture, workholding, shop made tool, mounting clamp, round stock holder, metalworking jig, tooling fixture, south bend lathe accessory