PN: 0.5INV Category: .

Product Description

0.5INV Series SMR Adapter

Use an SMR target with your Invar System

The 0.5INV Series magnetic adapters provide an SMR nest which fits on any of our Invar System bars.  With both English and metric versions available, the center point of a 0.5″ diameter SMR may be held at a specified distance from the end of the Invar bar. Different models have different offsets (see table below).  The SMR seats on a conical land and is held in place by a magnet.  The adapter’s threaded mount is 3/8″-24 for compatibility with our Invar system.
Choose the desired model number from the table below, which shows both the English and metric versions of this adapter.
Model Offset “A” Tolerance
0.5INV-.5 0.500″ ±0.0005″
0.5INV-1 1.000″ ±0.0005″
0.5INV-12MM 12 mm ±0.013 mm
0.5INV-25MM 25 mm ±0.013 mm

May Be Used With

Any 0.5″ diameter SMR
Our Invar System tubing


Material: Stainless steel
Hardness: HRC 42-45



English (PDF)


PDF Download Drawing

Brunson 0.5INV drawing

PN: 0.5INV Category: .