Product · Hand Tools & Gauges
Tesa / Brown & Sharpe Interapid 312 Dial Test Indicator
A classic lever-type dial test indicator from the long-running Interapid 312 series, sold under the Brown & Sharpe TESA name after Hexagon's 2001 acquisition of Brown & Sharpe.
This model has been discontinued by the manufacturer and is now sourced primarily through the used precision-tool market. PartnerGeometrics sources it through the used and refurbished market — available as Refurbished, Absolute Certified, or Surplus only.
Refurbished Absolute Certified Surplus
About the Tesa / Brown & Sharpe Interapid 312 Dial Test Indicator
The Interapid 312 is a widely recognized lever-type (finger) dial test indicator design, prized for its smooth action and durability, and remains one of the most actively traded classic precision indicators on the used-tool market.
Brown & Sharpe, founded in 1833, was acquired by Hexagon Metrology in 2001; its Interapid indicator line continues to be sold and serviced under the TESA/Brown & Sharpe name, with older units widely available secondhand.
| Specification | Value |
|---|---|
| Type | Lever-type (finger) dial test indicator |
| Heritage | Brown & Sharpe (est. 1833), acquired by Hexagon 2001 |
| Status | Classic design — actively traded secondhand |
Available as Refurbished, Absolute Certified, or Surplus — this model is no longer sold new. See our condition tier guide for details on what each tier includes.