Product Details
Professional direct-reading countersink gage for determining the major diameter of 90° countersinks. The dedicated angular plunger seats against the countersink surface for rapid dimensional verification.
Available Ranges
688-1Z (.020–.170"), 688-2Z (.160–.360"), 688-3Z (.360–.560") and 688-4Z (.560–.780"). Select the range in the dropdown above.
Choosing an Angle
90° is the standard included angle for metric flat-head screws and much general machining practice. Starrett offers the same instrument in 82° and 100°.
Calibration
WESTport is a precision gaging and metrology company, not only a gage supplier. Calibration, recertification and recall-interval support are available from our own calibration department — see hard gage calibration and dimensional inspection, calibration and repair, or contact us for scope and turnaround.