Briney Precision Test Bars

Briney Tooling Systems, Bad Axe, Mich., recently expanded its test bar offering to include CAT40 and CAT50 models; BT30, BT40 and BT50 models, and HSK50A, HSK63A, HSK80A and HSK100A models, according to a Feb. 9 news release. Briney also offers special test bar designs.

Briney, a supplier of precision test bars for more than 25 years, has continued to expand its CAT, BT and HSK offerings as spindle designs have evolved, according to the company. Each Briney test bar is provided with a certificate of accuracy that spells out the bar diameter and gage length that is inspected, and certified to four decimal places. That data accompanies each test bar and is etched on the bar.

Said to be the quickest way to confirm that your machine spindle is running accurately, test bars should be used to ensure proper alignment and realignment of the spindle, Briney explained in its news release. For every 0.0001" of total indicator runout (TIR) that can be eliminated, the company added, tool life can be extended by as much as 10 percent.

"That's why regular inspection of the machine tool spindle with a precision test bar for accuracy and alignment is imperative to ensure consistent quality production," the company said in the news release.